Paul Eastwick
University of California, Davis
Paul Eastwick is a professor of psychology at the University of California, Davis. His research focuses on the science of human mate selection, romantic attraction, and relationship dynamics. His published work investigates ideal partner preferences, mate evaluation theory, dating behaviors in virtual and in-person settings, and measures of relationship quality.
31 claims checked on air: 3 context 2 contradicted 21 supported 5 unverified
What they said on air
6 citing their own research
When making simple binary judgments about whether a briefly encountered person is physically attractive, two observers agree approximately two-thirds of the time.
"So, one example that I like to use is that if our job was just to evaluate whether somebody standing in front of us was hot or not, and it was somebody that we interacted with briefly and we're making just simple binary judgments, you and I are going to agree about two-thirds of the time." (said at 0:18:40)
Research on physical attractiveness consensus using the Social Relations Model (e.g., Eastwick et al., 2014; Hunt et al., 2015) demonstrates that when evaluating strangers or brief acquaintances, there is moderate consensus (target variance) about physical attractiveness, but substantial idiosyncratic/unique variance (relationship variance). A moderate correlation (r ≈ .30-.40) in stranger ratings corresponds to roughly two-thirds (65-67%) agreement in a binary classification (where 50% represents chance agreement). Furthermore, as individuals get to know each other longer, this consensus decreases significantly.
In the majority of romantic relationships, the initial first impression between partners is middling rather than an immediate extreme spark.
"Typically, if you if you look at what most relationships look like, and you look back at the beginning, the the typical first impression is middling. That's how we feel at first. Middling." (said at 0:26:40)
Evidence from relationship initiation studies indicates that most romantic relationships do not begin with an immediate romantic spark between strangers. A meta-analysis across seven samples (N = 1,897) by Stinson and colleagues found that approximately two-thirds (66-68%) of romantic relationships develop through a 'friends-first' pathway, where partners start as acquaintances or platonic friends with neutral or moderate initial romantic attraction rather than immediate intense romantic or sexual sparks.
In romantic relationships, subjective personal impressions and perceptions are the primary driver of relationship satisfaction and continuation rather than external consensus from friends or family.
"To argue that it would be better to listen to the consensus that your partner is a jerk, kind of it's sort of like you're arguing for like a sleeper effect, like there's wisdom in what other people know that you don't see. The evidence for that is actually not not great. It's it I'm it could be, and I'm sure it happens sometimes, but what usually happens in relationships is that people's own impressions and perceptions tend to be the major driver." (said at 0:30:45)
A systematic search of the indexed scientific and biomedical literature did not yield specific studies or meta-analyses directly comparing the relative effect sizes of subjective personal impressions versus external social network/family consensus as the primary driver of relationship satisfaction and continuation. Consequently, the specific comparative claim remains unverified in this literature base.
Close attached romantic relationships provide physiological and psychological health benefits, including improved recovery and better sleep quality.
"We essentially crave closeness, intimacy, support. We thrive when we get it. We're more likely to recover. We sleep better. We get all of these benefits from close attached relationships." (said at 0:39:22)
Observational and dyadic sleep research demonstrates that attachment security and close romantic relationship functioning are positively associated with better subjective sleep quality and general psychological and physical health outcomes, whereas attachment insecurity (anxiety and avoidance) is linked with disrupted sleep.
Adult attachment styles are malleable over time, and individuals with avoidant attachment can become more secure in long-term relationships.
"One thing we know today from studying more couples and getting better at studying couples over longer periods of time is you realize that, boy, people's attachment orientations really can change. So somebody can come into a relationship with an avoidant, trauma-filled past, but with enough time with the right kind of person, again, sharing their unique bond—which maybe science will never crack, but they know all about it—that person will start to become less and less avoidant with time. They'll become more secure." (said at 0:40:15)
Longitudinal dyadic and developmental studies demonstrate that adult attachment orientations are malleable over time rather than strictly fixed traits. Specifically, research tracking individuals across romantic relationships shows that attachment avoidance toward romantic partners can decrease as relationships progress, and partners' attachment security co-regulates over time. While some studies in long-established couples note that attachment avoidance can exhibit high stability, the broader longitudinal evidence supports the plasticity of attachment styles and the capacity for insecurely attached individuals to develop greater security in romantic relationships.
- supports: Coregulation in Romantic Partners' Attachment Styles: A Longitudinal Investigation. (Personality & social psychology bulletin 2014)
"Results indicated that, after taking into account people's prototypical levels of security, changes in security were coordinated within couples." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Similarities and differences regarding changes in attachment preferences and attachment st… (Attachment & human development 2018)
"The parallel pattern was found for attachment avoidance; as romantic relationships progressed, attachment avoidance with romantic partners decreased and avoidance with the best friend increased." (abstract, results, passage verified)
pubmedfull study (doi) - partial: Examining change in attachment in romantic couples: The role of relationship characteristi… (Journal of personality and social psychology 2025)
"Attachment has long been considered a stable trait, but recent findings indicate that attachment insecurity decreases over time among adults in romantic relationships." (abstract, results, passage verified)
pubmedfull study (doi)
Couples who maintain couple friendships and are integrated into shared social networks report better relationship outcomes on average.
"And there's research showing that, you know, generally couples who feel like they have couple friends and are embedded in networks like that, that that generally tends to go well on average." (said at 0:46:14)
A systematic search of PubMed and Europe PMC did not return indexed biomedical or psychological records specifically evaluating the association between couple friendships, shared social network integration, and romantic relationship satisfaction or outcomes. Most primary literature on dyadic friendship networks and romantic functioning is published in specialized social psychology and sociology journals not indexed within the searched databases. Consequently, this claim could not be verified against the available database records; this does not prove the claim false.
Women generally cultivate social support across diverse relationships, whereas men rely predominantly on their romantic partner for emotional support and intimacy.
"And the big one is that women generally are better at cultivating social support from all corners of their lives, not just their romantic partner. Whereas for men, it's largely their romantic partner. That's where they're getting most of their support, intimacy needs met." (said at 0:49:58)
Large-scale panel and cohort studies support the claim. Research shows that men's perceived social support and well-being are disproportionately tied to their romantic partner compared to women, while partnered women maintain stronger, more supportive social ties and friendship networks outside of the relationship.
- supports: Gender differences in the associations between relationship status, social support, and we… (Journal of family psychology : JFP : journal of the Division of Family Psychology of the American Psychological Association (Division 43) 2019)
"The primary theoretical explanation for these wellbeing differences is that men's romantic partners tend to be their primary source of perceived social support. Yet, there is surprisingly little empirical evidence that perceived social support accounts for these gender differences. The current research used a national panel study in New Zealand (N = 20,774) to test whether perceived social support mediated the relationship between having a romantic partner and wellbeing and whether these associations were noninvariant across gender. Perceived social support partially mediated the association between having a romantic partner and higher wellbeing (life satisfaction and self-esteem), and this pathway was stronger for men than it was for women." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Partnership Trajectories and Older Adults' Supportive and Strained Friendship Ties: Do Pat… (Research on aging 2026)
"Married and cohabiting persons report less friendship support and strain than their divorced, widowed, or never married counterparts, with married and cohabiting men reporting significantly less support than their female counterparts." (abstract, results, passage verified)
pubmedfull study (doi)
Across relationship stages, men are statistically more likely than women to express interest, say 'I love you' first, and seek exclusivity.
"And this is why you see across the full range of the arc of a relationship that men are always a little bit more eager than women. ... 'I want to be in this relationship in the first place. I'm more likely to say I love you first. I'm more I'm more likely to want to be exclusive. I'm more likely to want to take things to the next level.'" (said at 0:50:30)
Empirical studies in social and evolutionary psychology confirm that men are more likely than women to initiate romantic interest, fall in love earlier, and confess love ('say I love you') first in heterosexual relationships, contrary to popular cultural stereotypes. Landmark research across multiple relationship studies demonstrated that men consistently confess love first and experience more positive affect upon hearing early love confessions.
Women are more likely than men to initiate relationship dissolutions and breakups.
"Who who's more likely to want to break up? It's women who are more likely to want to break up." (said at 0:51:15)
A broad body of demographic, sociological, and psychological research consistently finds that women are more likely than men to initiate romantic relationship dissolutions and divorces in heterosexual partnerships. Observational and review literature highlights that women file for or initiate a substantial majority of divorces and breakups, while men show greater dependence on romantic partnerships and greater reluctance to initiate dissolutions.
- supports: Why women choose divorce: An evolutionary perspective. (Current opinion in psychology 2022)
"Why, then, do these women initiate divorce more and fare better psychologically after a divorce than men?" (abstract, results, passage verified)
pubmedfull study (doi) - supports: The asymmetric structure of male-female bonding explains gender differences in relationshi… (The Behavioral and brain sciences 2026)
"This biobehavioral architecture, not mere socialization, explains men's greater relationship striving, health benefits from partnership, reluctance to initiate breakups, and severe post-dissolution suffering." (abstract, results, passage verified)
pubmedfull study (doi)
Men are more likely than women to continue thinking about their ex-partners following a breakup.
"Men are more likely to be thinking about their exes." (said at 0:51:22)
A systematic search of PubMed failed to identify empirical studies confirming that men are significantly more likely than women to continue thinking about or longing for their ex-partners following a romantic breakup. In fact, research on post-breakup adjustment and emotional attachment indicates that factors such as attachment style, fear of being single, and coping mechanisms explain post-breakup rumination and longing more reliably than binary sex differences, with some studies showing women experience substantial emotional stress post-dissolution or adopt more frequent post-breakup communication attempts depending on attachment style. As no indexed empirical research clearly validating the general claim was identified in PubMed, the claim remains unverified.
- context: Longing for Ex-Partners out of Fear of Being Single. (Journal of personality 2016)
"Lagged-day analyses provided support for the conclusion that fear of being single increased longing and renewal attempts over time, but longing and renewal attempts did not influence fear of being single." (abstract, results, passage verified)
pubmedfull study (doi) - context: When Love Just Ends: An Investigation of the Relationship Between Dysfunctional Behaviors,… (Frontiers in psychology 2021)
"Results showed that a secure or dismissing attachment style, a higher education, and currently married (but awaiting separation) status were the protective factors in adopting such dysfunctional behaviors, while the preoccupied and fearful-avoidant subjects, especially females, tended to adopt dysfunctional behaviors (i.e., communication attempts and defamation) and reported fear of abandonment and need for attention as underlying motivations." (abstract, results, passage verified)
pubmedfull study (doi)
The perception that social support is available if needed, rather than the actual utilization of support, is the primary driver of health and well-being benefits.
"It's actually not literally do you take people up on it. It's do you kind of have a vague sense that people are around, and that's the part that matters. That's the part that gives us the health and well-being benefits. It's like a bank account you never have to dip into. It just gives you the sense you could dip into it." (said at 0:53:46)
Extensive literature in health psychology and epidemiology demonstrates that perceived social support (the cognitive appraisal that support is available if needed) is a far more consistent and robust predictor of physical and psychological health outcomes than received social support (the actual receipt or utilization of support). Received support often demonstrates weak, inconsistent, or even negative associations with health outcomes due to confounding with acute distress/need or threats to self-esteem.
On dating apps, women swipe affirmatively on approximately 5% of prospective matches, whereas men swipe affirmatively on approximately 50%.
"And look, one of the bigger gender differences that we see in the whole realm of sex and relationships is in swiping behavior: the fact that women will swipe yes on like 5% of the men they see, but men swipe yes at about 50/50." (said at 1:00:15)
No indexed biomedical or public health publications in the searched databases directly report or verify the specific swipe rates claimed (approximately 5% affirmative swipes for women vs. approximately 50% for men). While broader sociological, network analysis, and computer science literature (such as conference proceedings on mobile dating) often discuss large sex disparities in selective swiping and desirability hierarchies, specific quantitative verification of these exact percentages is not established in the retrieved biomedical literature.
When confederates approach college students on campus and ask if they would go to bed with them, men are approximately 20 times more likely to say yes to the request than women.
"You recruit confederates. So, that means it's somebody who's working for the experimenter. And then they go around campus and they ask people, "I've noticed you around and I find you very attractive. Would you like to go to bed with me?" And when you do this, you find that men are about 20 times more likely to say yes to that request than women." (said at 1:01:43)
The claim accurately reflects findings from the seminal field experiments by Clark and Hatfield (1989) and subsequent replications. In the classic campus field experiments, attractive male and female confederates approached college students and asked one of three requests, including whether they would 'go to bed' with them. Across the original studies, 69% to 75% of men agreed to the request for casual sex, whereas 0% of women did. Subsequent replications and field studies have consistently demonstrated this large gender disparity (with female acceptance rates typically between 0% and 6% and male acceptance rates between 50% and 75%), making men roughly 15 to 20 or more times more likely to agree.
- supports: Clark and Hatfield's evidence of women's low receptivity to male strangers' sexual offers … (Psychological reports 2005)
"Consistently across three identically designed naturalistic experiments (aggregated N = 144), these authors reported a 0% acceptance rate by women. The present research analyzed an informal "real-life" journalistic project (N= 100) initiated by an Austrian magazine, in which results indicated a 6.1% acceptance rate (95% CI: 2.8-12.6%) for a complete stranger offering women immediate sexual involvement." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Perceived proposer personality characteristics and gender differences in acceptance of cas… (Journal of personality and social psychology 2011)
"In a highly influential paper, Clark and Hatfield (1989) demonstrated that, whereas men were quite likely to accept a casual sexual offer from a confederate research assistant, women never did so." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Gender differences in receptivity to sexual invitations: two naturalistic replication stud… (The Journal of social psychology 2025)
"In both studies, men more readily than women accepted a sexual invitation from a stranger of the opposite gender. In contrast to the original study, the gender difference was independent of the type of proposition. Individual differences in sociosexuality did not account for the observed gender differences. In summary, gender differences in the willingness to accept casual sexual invitations persist to this day, over 40 years after the initial Clark and Hatfield study." (abstract, results, passage verified)
pubmedfull study (doi)
When sexual or hookup requests occur between people who know each other or within a friend group, men are only approximately twice as likely as women to accept, compared to 20 times more likely with strangers.
"But if you do this one little tweak and you say, "Yeah, okay, but how about like the last time that happened to you in real life, like in a context where you knew people?" and then you look at the gender difference, it's not 20 times more, it's two times more." (said at 1:02:20)
Evidence demonstrates a substantial reduction in the gender gap for casual sex acceptance when propositions come from friends or familiar acquaintances compared to strangers. In the classic Clark and Hatfield stranger paradigm and its replications, men accept sexual offers from unfamiliar confederates at massive rates (around 70-75%) whereas women virtually never do (0% to ~6%), creating an extreme disparity. Research by Conley (2011) demonstrated that when proposals occur within familiar contexts (such as friends or known acquaintances), this extreme gap is dramatically attenuated.
Early research in computer-mediated communication indicates that anxious individuals benefit from communicating via text or keyboard because it reduces communication anxiety by allowing time to formulate responses.
"I was reminded of some work—this is early work in the like online interaction space—that suggested that actually anxious people get a lot out of being able to communicate with a keyboard or with texting because they don't get so overwhelmed. So, this is probably going to be somebody who also on a first date would be having a bit of a tough time. So, it might be that actually texting for them has at least the advantage of reducing some of the anxiety because they can take a minute to think about what they want to say before they have to actually come out with it." (said at 1:14:12)
Early foundational computer-mediated communication (CMC) literature (such as the hyperpersonal model and preference for online social interaction models) posited that asynchronous, text-based communication reduces communication anxiety for socially anxious individuals by providing greater control over self-presentation and time to edit responses. However, more recent naturalistic and experimental research indicates that while socially anxious individuals often perceive or prefer digital communication for perceived safety, asynchronous text-based interaction does not reliably alleviate negative emotions or social anxiety in daily life.
Analysis of romantic couples' text messaging histories demonstrates that their communication styles converge over time, adopting similar cadence and vocabulary.
"essentially their styles of communicating start to like cohere, right? It's like a pattern of mutual influence where they get the similar cadence and they start using similar words and other things as they're talking to each other." (said at 1:15:36)
The claim is supported by longitudinal research analyzing text messaging corpora from romantic couples during relationship formation. A longitudinal analysis of over 1 million text messages from 41 dating couples found that linguistic alignment—including syntactic language style matching, semantic similarity, and overall cosine similarity—increased over time following an exponential growth trajectory toward an asymptote. Certainty is rated as low due to the observational nature of the digital trace study and the relatively small cohort size (41 college-aged couples).
On self-report rating scales, men report caring more about partner attractiveness than women do, and women report caring more about partner earning potential than men do.
"Men will say they care about attractiveness in a partner more than women. And women will say they care about earning potential in a partner more than men. Now, I'm phrasing that in a particular way. And I'm I'm saying what people say they want because I'm critiquing the experimental paradigms that were used. It usually had people rating a bunch of traits on scales." (said at 1:31:28)
Extensive empirical research using self-report questionnaires, national probability samples, and cross-cultural surveys consistently finds that men self-report a stronger preference for physical attractiveness in potential partners than women do, whereas women self-report a stronger preference for good earning capacity/potential than men do.
- supports: Sex differences in mate preferences revisited: do people know what they initially desire i… (Journal of personality and social psychology 2008)
"In paradigms in which participants state their ideal romantic-partner preferences or examine vignettes and photographs, men value physical attractiveness more than women do, and women value earning prospects more than men do." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Are Sex Differences in Preferences for Physical Attractiveness and Good Earning Capacity i… (Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior 2019)
"On average, women show stronger preferences for mates with good earning capacity than men do, while men show stronger preferences for physically attractive mates than women do." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Mate selection preferences: gender differences examined in a national sample. (Journal of personality and social psychology 1994)
"The gender differences found in this study were consistent with those secured in previous research (e.g., youth and physical attractiveness were found to be more important for men than for women; earning potential was found to be less important for men than for women)" (abstract, results, passage verified)
pubmedfull study (doi)
In speed-dating studies and real-world relationship evaluations across over 40 countries, there are no gender differences in how much traits like ambition or attractiveness appeal to men versus women.
"what you'd see is that the men tended to like the women a little bit more to the extent that they were ambitious. It wasn't a huge driver of their liking, but it was definitely there and it was definitely positive. But then when we flipped it and we looked at what the women were drawn to, not what they said, but what they were drawn to, they also tended to like the ambitious men a little bit. And the magnitude of that preference was identical. And it's been 20 years of this where we've looked at ongoing relationships. We've looked at, you know, 40-something countries throughout the world. That narrative plays out every time. There's no gender differences in the extent to which these traits appeal to men and women when they're evaluating like real people they've actually met." (said at 1:32:22)
Prominent research on romantic attraction by Eastwick and colleagues (including speed-dating paradigms and subsequent meta-analyses of live mate selection and established relationships) demonstrates that while men and women exhibit traditional sex differences in their stated or hypothetical preferences (e.g., men reporting higher preference for physical attractiveness and women for earning prospects/ambition), these sex differences disappear when evaluating actual, live romantic partners. In real-world interactions and speed dating, physical attractiveness and earning prospects/ambition predict romantic interest and relationship evaluations similarly for both men and women.
An individual's objective income level has very small effects on partner relationship satisfaction, whereas couple-level socioeconomic status has a larger effect.
"the reality is a person's objective income, it has very, very small effects on how their partners feel about them. The bigger effects are things like, you know, if now we scaffold up and look at socioeconomic status. So, do you have the resources to get by as a couple? That can be very challenging for people." (said at 1:41:40)
A targeted search of published literature in PubMed and Europe PMC did not identify empirical studies directly testing and comparing the differential effect sizes of an individual's objective income level versus couple-level socioeconomic status on partner relationship satisfaction as claimed. While broader literature examines socioeconomic status, household income, and financial strain in relation to marital functioning, specific direct comparisons evaluating individual-level vs. couple-level objective income effects matching the claim were not retrieved.
Marriages in which the woman earned more than the man were historically more prone to dissolution, but this difference ceased to exist in the 1990s.
"Stepping back and looking at the broader picture of the data, it used to be true that marriages were more fragile when the woman earned more than the man in the marriage. But this stopped being true in the '90s. So that gender difference doesn't exist anymore." (said at 1:43:25)
A demographic study analyzing longitudinal data from the 1968–2009 Panel Study of Income Dynamics (PSID) found that while wives outearning their husbands was positively associated with marital dissolution among couples married in the late 1960s and 1970s, this elevated risk of divorce was no longer present among couples married in the 1990s.
In heterosexual relationships, a female partner having more education than the male partner is not a risk factor for relationship dissolution.
"So women are earning more of the higher degrees. So, if there's a mismatch, probably the woman has more education than the guy. That's not a risk factor relative to if they were the same level, relative to if he were higher. It just doesn't really seem to be doing anything." (said at 1:44:30)
Large demographic cohort and population registry studies demonstrate that although educational hypogamy (a wife having more education than her husband) was historically associated with higher divorce risk in older cohorts, this disparity has vanished in modern marriage cohorts. In contemporary heterosexual unions, a female partner having more education than the male partner is no longer a risk factor for relationship dissolution.
- supports: The Reversal of the Gender Gap in Education and Trends in Marital Dissolution. (American sociological review 2014)
"In particular, we confirm that marriages in which wives have the educational advantage were once more likely to dissolve, but we show that this association has disappeared in more recent marriage cohorts." (abstract, results, passage verified)
pubmedfull study (doi) - supports: The reversal of the gender gap in education and relative divorce risks: A matter of altern… (Population studies 2017)
"hypogamous marriages, where the wife was more educated than the husband, used to have a higher divorce risk than hypergamous marriages, where the husband was more educated, but this difference has disappeared." (abstract, results, passage verified)
pubmedfull study (doi) - supports: His and Her Education and Marital Dissolution: Adding a Contextual Dimension. (European journal of population = Revue europeenne de demographie 2018)
"Using Belgian census and register data for 458,499 marriages contracted between 1986 and 2001, we show that hypogamy was not associated with higher divorce rates than homogamy in communities where hypogamy was common." (abstract, results, passage verified)
pubmedfull study (doi)
In real-world matchmaking date evaluations, both men and women show an increased interest in going on a second date with younger partners, with no gender difference in this preference.
"We saw that the younger folks appeal to the men more. And by the way, it's not a huge effect. It's not like the gross stereotype that's out there. Men are a little bit more interested in the women to the extent that they're younger, but it's not gigantic. Women are doing the same thing. They're a little bit more interested in the younger guys. They don't say that on paper. In fact, sometimes they're like, "Don't set me up with the younger guys." And then they do and they say, "Huh, that was interesting. I enjoyed that date. I would like to see him again."" (said at 1:50:50)
A 2025 study analyzing real-world matchmaking blind date evaluations (6,262 daters and 9,084 dyadic reports) evaluated initial romantic desire and attraction. Preregistered analyses confirmed that both men and women displayed a modest preference/attraction toward younger partners, with no significant difference between genders in this preference.
What people state they are filtering for in the abstract is generally uncorrelated with what actually appeals to them when meeting someone face to face.
"We haven't talked about this too much yet, but you can get into a whole line of research and studies on, if people are filtering for things in the abstract, does that match what's ultimately going to appeal to them when they meet face to face? We find that generally speaking, these things tend to be pretty uncorrelated. So what people think they want doesn't match up with what they actually end up liking once they meet somebody face to face." (said at 1:54:10)
Evidence from speed-dating experiments and relationship psychology demonstrates that stated ideal partner preferences (assessed in the abstract or via self-report) fail to reliably predict actual romantic attraction and partner choices in face-to-face interactions. In landmark speed-dating studies and subsequent meta-analyses, participants' stated preferences did not predict what traits inspired desire when meeting live potential partners.
Mate value does not reliably predict relationship quality; individuals with low mate value can have high-quality relationships, and individuals with high mate value can have low-quality relationships.
"One of the reasons that scientifically I am out here like questioning the usefulness of the mate value construct is because I know that people of quote-unquote low value can have absolutely fantastic relationships and people of quote-unquote high value can have absolutely terrible relationship." (said at 2:04:00)
Empirical studies in evolutionary and relationship psychology consistently find that mate value (both individual self-perceived mate value, partner mate value, and mate value discrepancies) is a reliable statistical predictor of relationship quality and satisfaction. Research shows that higher partner mate value and mutual high mate value are positively associated with relationship satisfaction, whereas lower mate value and mate value asymmetries are associated with lower satisfaction and more cost-inflicting mate retention behaviors.
- contradicts: Mate value asymmetry and relationship satisfaction in female opinion. (Journal of sex & marital therapy 2014)
"Women's relationship satisfaction was positively related to the perception of their partners' mate value but negatively correlated to their mate value self-assessment. Moreover, relationship satisfaction was the lowest in the category where woman has higher self-assessed mate value." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: Mate-value and relationship satisfaction: The moderating roles of mate retention behaviors… (PloS one 2022)
"Results indicated that there were positive associations between mate value, individual and coalitional Benefit-Provisioning mate retention behaviors, and relationship satisfaction." (abstract, results, passage verified)
pubmedfull study (doi) - contradicts: The Link Between Mate Value Discrepancy and Relationship Satisfaction-An Empirical Examina… (Behavioral sciences (Basel, Switzerland) 2025)
"The findings indicate that relationship satisfaction is highest when both partners exhibit high levels of Family orientation, resourcefulness, appearance, sociability, and physical condition. Among these, family orientation emerged as the most important dimension. Notably, relationship satisfaction declined when both partners scored equally low on these traits." (abstract, results, passage verified)
pubmedfull study (doi)
In political matching data, people with diametrically opposed political preferences are very unlikely to get together in the first place, but among mismatched couples that do form, political differences do not significantly predict relationship satisfaction.
"what you see in the political matching data is that the odds that people of diametrically opposed preferences, the odds they're going to get together in the first place are very, very low. But among the mismatches that do exist, it actually doesn't predict satisfaction all that much." (said at 2:04:50)
Empirical dyadic research examining political attitudes in romantic couples supports both parts of the claim. Longitudinal study data using Response Surface Analysis show strong political homophily (assortative mating) where partners exhibit substantial initial similarity in political attitude dimensions rather than converging over time. Furthermore, among couples that do form, attitude similarity or mismatch provides little to no significant predictive value for relationship satisfaction.
Pairing unacquainted individuals based on measured actual similarity predicts romantic attraction or match success no better than chance (a coin flip).
"if what I wanted to do was take two people who had never met and assess everything I could about them and then figure out whether they were going to be a match or not based on whether they were similar, I really was probably going to be no better than a coin flip at figuring out whether or not they were going to click. That's actual similarity... When we've done studies like that, you basically get a coin flip every time." (said at 2:05:20)
Empirical studies and speed-dating experiments investigating initial romantic attraction find that measured dyadic or actual similarity between unacquainted individuals fails to predict romantic interest or relationship outcomes above chance. While actor characteristics (e.g., individual personality or baseline desirability) and physical attractiveness predict attraction, dyadic similarity effects consistently show negligible to null predictive validity at zero acquaintance.
People who are in happy romantic relationships exhibit derogation of alternatives, evaluating alternative potential partners as less desirable than objective metrics would indicate.
"what you see in general is that for people who are in relationships, and especially if they are happy in that relationship, any alternative partner that you can throw at them, they will tend to think that that alternative partner is pretty weak sauce. They think that person is less desirable than any other metric you might want to come up with for how desirable that person actually is. That's what we mean by derogation of alternatives." (said at 2:10:25)
A well-documented phenomenon in relationship science and social psychology (derogation of attractive alternatives) demonstrates that individuals committed to and satisfied in romantic relationships systematically devalue or rate potential alternative partners as less attractive or desirable compared to single individuals or objective baseline ratings, serving as an implicit relationship maintenance mechanism.
Experimental studies show that having a sexual fantasy about an attractive alternative person increases sexual desire for that person while simultaneously increasing sexual desire for one's current partner.
"if you look in studies where they ask people, 'Have a sexual fantasy about your partner. Now, how much sexual desire do you feel for your partner?' It has gone up. Great. That's pretty straightforward. 'Now, please have a sexual fantasy about, I don't know, whoever's in second place that's not your partner.' Then you start having sexual feelings for that person, and you start having sexual feelings for your partner at the same time." (said at 2:13:57)
Experimental and daily-diary studies examining dyadic versus extradyadic sexual fantasies show that fantasizing about one's current partner (dyadic fantasy), rather than about an alternative person, is what promotes sexual desire and relationship-promoting behaviors toward the current partner. Extradyadic fantasies do not elicit this partner-directed relational benefit.
Relationship satisfaction tends to decline over time, with individuals generally reporting higher satisfaction early in romantic relationships than in later stages.
"over time people were the happiest early on in their relationship than they are today." (said at 2:31:50)
A comprehensive meta-analysis of 165 longitudinal/cross-sectional samples (165,039 participants) published in Psychological Bulletin (Buecker et al., 2021) examined relationship satisfaction trajectories over time. The meta-analysis found that relationship satisfaction decreases over time within a given relationship, experiencing the largest declines during the first years of a relationship (and during young adulthood), with mean levels reaching a low point around 10 years of relationship duration before showing slight rebound/fluctuation.
Sexual satisfaction and sexual desire for one's partner are strongly correlated with overall relationship satisfaction.
"Usually, you will see that things like sexual satisfaction or sexual desire for your partner are going to be pretty tightly related to how you feel about the relationship in general." (said at 2:35:26)
A large meta-analysis and empirical dyadic studies confirm that sexual satisfaction and partner-specific sexual desire are positively correlated with relationship satisfaction and relational well-being. Studies specifically distinguish partner-directed desire (which correlates positively with relationship quality) from solitary or general desire.
- supports: Conceptual Frameworks Linking Sexual Health to Physical, Mental, and Interpersonal Well-Be… (Behavioral sciences (Basel, Switzerland) 2025)
"Path analyses of meta-analytic correlation matrices revealed that dimensions of sexual health (i.e., sexual satisfaction, orgasms, sexual desire, lack of sexual pain, vaginal lubrication) demonstrated unique links to greater health, interpersonal functioning, and individual functioning (i.e., higher psychological well-being, physical health, and relationship satisfaction; lower psychological distress, attachment anxiety, and attachment avoidance)." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Dual Nature of Sexual Desire: The Unique Roles of General and Partner-Specific Sexual Desi… (Archives of sexual behavior 2026)
"Cross-sectional analyses revealed that general sexual desire was negatively associated with relationship well-being at both time points, whereas partner-specific sexual desire showed positive concurrent associations with relationship well-being across waves." (abstract, results, passage verified)
pubmedfull study (doi)
Perceiving a partner or potential partner as a 'good lover' is a strong predictor of overall positive relationship evaluation and the desire for the relationship to continue.
"In both cases, feeling like this person is a good lover or likely to be a good lover, in the case of the attraction scenarios, is a very, very good sign for how positively you feel about the relationship in general and whether you want the relationship to continue." (said at 2:38:01)
Perceiving a romantic or prospective partner as sexually competent or fulfilling (such as fulfilling sexual needs or matching ideal traits like being a 'good lover') is positively associated with romantic relationship satisfaction, positive relationship evaluations, and relationship continuation. However, large-scale empirical tests of the ideal standards model across 43 countries (N = 10,358) demonstrate that while overall profile-matching across traits predicts relationship evaluations, specific individual trait-level effects are modest to small (average beta = .04 to .19). Thus, while sexually fulfilling partner perceptions are a reliable positive correlate of relationship well-being, calling it an isolated 'strong predictor' overstates the magnitude of individual trait effects relative to broader relationship and sexual dynamics.
- context: Ideal Standards, Acceptance, and Relationship Satisfaction: Latitudes of Differential Effe… (Frontiers in psychology 2017)
"Our results revealed that pattern correspondence had no relation with partner acceptance, but a positive linear/exponential association with relationship satisfaction. Mean-level match had a significant positive association with actor's acceptance and relationship satisfaction up to the point where perceived partner score equaled ideal standards score." (abstract, results, passage verified)
pubmedfull study (doi) - supports: When a Partner Supports Your Sexual Autonomy: Perceived Partner Sexual Autonomy Support, N… (Personality & social psychology bulletin 2026)
"across three multi-method studies ( N = 786), we developed a measure of perceived partner sexual autonomy support and demonstrated that perceiving sexual autonomy support from a partner in general, during sex, and over time were associated with greater sexual need fulfillment as well as sexual and relationship satisfaction for both partners" (abstract, results, passage verified)
pubmedfull study (doi) - context: A worldwide test of the predictive validity of ideal partner preference matching. (Journal of personality and social psychology 2025)
"The most rigorous tests revealed significant preference-matching effects in the whole sample and for partnered and single participants separately. The "corrected pattern metric" that collapses across 35 traits revealed a zero-order effect of β = .19 and an effect of β = .11 when included alongside a normative preference-matching metric. Specific traits in the "level metric" (interaction) tests revealed very small (average β = .04) effects." (abstract, results, passage verified)
pubmedfull study (doi)
Fact-checked episodes
Publications
- In-Person and Virtual Dates are Comparable, But People Don't Know It.Personality & social psychology bulletin 2026 · CEBM Level 3
- Predicting relationship quality with itself? A single general factor captures most of the variance across 34 common relationship measures.PloS one 2026 · CEBM Level 3
- Large language models can detect verbal indicators of romantic attraction.Scientific reports 2026 · CEBM Level 3
- The support-deficit perspective is now the parsimonious explanation for gender differences in human mating.The Behavioral and brain sciences 2026 · CEBM Level 5
- How Do People Feel About Mates?Annual review of psychology 2025 · CEBM Level 5
- A worldwide test of the predictive validity of ideal partner preference matching.Journal of personality and social psychology 2025 · CEBM Level 3
- No gender differences in attraction to young partners: A study of 4500 blind dates.Proceedings of the National Academy of Sciences of the United States of America 2025 · CEBM Level 3
- Experimental Tests of the Role of Ideal Partner Preferences in Relationships.Personality & social psychology bulletin 2025 · CEBM Level 2
- Promotion- or Prevention-Focused Self-Evaluation and the Preferential Pursuit of More Desirable Romantic Partners.Journal of personality 2025 · CEBM Level 3
- Summarized attribute preferences have unique antecedents and consequences.Journal of experimental psychology. General 2024 · CEBM Level 2
- Mate evaluation theory.Psychological review 2023 · CEBM Level 5
- Psychological Science in the Wake of COVID-19: Social, Methodological, and Metascientific Considerations.Perspectives on psychological science : a journal of the Association for Psychological Science 2022 · CEBM Level 5
- Initial impressions of compatibility and mate value predict later dating and romantic interest.Proceedings of the National Academy of Sciences of the United States of America 2022 · CEBM Level 3
- Measurement invariance of the moral vitalism scale across 28 cultural groups.PloS one 2020 · CEBM Level 3
- Experiences of liking versus ideas about liking.The Behavioral and brain sciences 2020 · CEBM Level 5
- Machine learning uncovers the most robust self-report predictors of relationship quality across 43 longitudinal couples studies.Proceedings of the National Academy of Sciences of the United States of America 2020 · CEBM Level 3
- Best Practices for Testing the Predictive Validity of Ideal Partner Preference-Matching.Personality & social psychology bulletin 2019 · CEBM Level 5
- Explaining illness with evil: pathogen prevalence fosters moral vitalism.Proceedings. Biological sciences 2019 · CEBM Level 3
- Editorial.Psychological bulletin 2018 · CEBM Level 5
- What do short-term and long-term relationships look like? Building the relationship coordination and strategic timing (ReCAST) model.Journal of experimental psychology. General 2018 · CEBM Level 3
- Toward an Integrative Framework for Studying Human Evaluation: Attitudes Toward Objects and Attributes.Personality and social psychology review : an official journal of the Society for Personality and Social Psychology, Inc 2018 · CEBM Level 5
- The Psychology of Close Relationships: Fourteen Core Principles.Annual review of psychology 2017 · CEBM Level 5
- Consistency and inconsistency among romantic partners over time.Journal of personality and social psychology 2017 · CEBM Level 3
- "Going out" of the box: Close intercultural friendships and romantic relationships spark creativity, workplace innovation, and entrepreneurship.The Journal of applied psychology 2017 · CEBM Level 2
- Replicability and other features of a high-quality science: Toward a balanced and empirical approach.Journal of personality and social psychology 2017 · CEBM Level 5
- Is Romantic Desire Predictable? Machine Learning Applied to Initial Romantic Attraction.Psychological science 2017 · CEBM Level 3
- Dominant, open nonverbal displays are attractive at zero-acquaintance.Proceedings of the National Academy of Sciences of the United States of America 2016 · CEBM Level 2
- Power and the pursuit of a partner's goals.Journal of personality and social psychology 2016 · CEBM Level 2
- Best research practices in psychology: Illustrating epistemological and pragmatic considerations with the case of relationship science.Journal of personality and social psychology 2015 · CEBM Level 5
- Jealousy increased by induced relative left frontal cortical activity.Emotion (Washington, D.C.) 2015 · CEBM Level 2
- When does familiarity promote versus undermine interpersonal attraction? A proposed integrative model from erstwhile adversaries.Perspectives on psychological science : a journal of the Association for Psychological Science 2015 · CEBM Level 5
- Leveling the Playing Field: Longer Acquaintance Predicts Reduced Assortative Mating on Attractiveness.Psychological science 2015 · CEBM Level 3
- (Psychological) Distance Makes the Heart Grow Fonder: Effects of Psychological Distance and Relative Intelligence on Men's Attraction to Women.Personality & social psychology bulletin 2015 · CEBM Level 2
- The predictive validity of ideal partner preferences: a review and meta-analysis.Psychological bulletin 2014 · CEBM Level 2
- Is a meta-analysis a foundation, or just another brick? Comment on Meltzer, McNulty, Jackson, and Karney (2014).Journal of personality and social psychology 2014 · CEBM Level 5
- Relational mate value: consensus and uniqueness in romantic evaluations.Journal of personality and social psychology 2014 · CEBM Level 3
- The many voices of Darwin's descendants: reply to Schmitt (2014).Psychological bulletin 2014 · CEBM Level 5
- Trust and biased memory of transgressions in romantic relationships.Journal of personality and social psychology 2013 · CEBM Level 3
- Sex differences in succumbing to sexual temptations: a function of impulse or control?Personality & social psychology bulletin 2013 · CEBM Level 2
- The evolutionary armistice: attachment bonds moderate the function of ovulatory cycle adaptations.Personality & social psychology bulletin 2012 · CEBM Level 3
- Online Dating: A Critical Analysis From the Perspective of Psychological Science.Psychological science in the public interest : a journal of the American Psychological Society 2012 · CEBM Level 5
- Language style matching predicts relationship initiation and stability.Psychological science 2011 · CEBM Level 3
- Familiarity does indeed promote attraction in live interaction.Journal of personality and social psychology 2011 · CEBM Level 3
- When and why do ideal partner preferences affect the process of initiating and maintaining romantic relationships?Journal of personality and social psychology 2011 · CEBM Level 3
- Implicit and explicit preferences for physical attractiveness in a romantic partner: a double dissociation in predictive validity.Journal of personality and social psychology 2011 · CEBM Level 3
- In live interaction, does familiarity promote attraction or contempt? Reply to Norton, Frost, and Ariely (2011).Journal of personality and social psychology 2011 · CEBM Level 5
- Possible selves in marital roles: the impact of the anticipated division of labor on the mate preferences of women and men.Personality & social psychology bulletin 2009 · CEBM Level 3
- Is love colorblind? Political orientation and interracial romantic desire.Personality & social psychology bulletin 2009 · CEBM Level 3
- Beyond the pleistocene: using phylogeny and constraint to inform the evolutionary psychology of human mating.Psychological bulletin 2009 · CEBM Level 5
- Arbitrary social norms influence sex differences in romantic selectivity.Psychological science 2009 · CEBM Level 3
- Sex differences in mate preferences revisited: do people know what they initially desire in a romantic partner?Journal of personality and social psychology 2008 · CEBM Level 3
- The attachment system in fledgling relationships: an activating role for attachment anxiety.Journal of personality and social psychology 2008 · CEBM Level 3
- Selective versus unselective romantic desire: not all reciprocity is created equal.Psychological science 2007 · CEBM Level 3