Experimental manipulation of extraverted and introverted behavior and its effects on well-being.
Level 2 - randomized trial
Individual randomized trial testing behavioral manipulation
PubMed 31368759 · doi:10.1037/xge0000668
What was done
Participants were experimentally instructed to engage in extraverted behavior for one week and introverted behavior for one week to test the causal effects of personality-related behavior on well-being.
What was found
The abstract reports no numerical values, sample sizes, or effect sizes. It states directionally that participants experienced an increase in well-being when assigned to act extraverted and a decrease in well-being when assigned to act introverted.
Why it matters
It provides experimental evidence that short-term behavioral adjustments related to personality traits can causally influence subjective well-being rather than merely correlating with it.
Limits
The abstract omits sample size, participant demographics, baseline personality traits, and quantitative data. The intervention periods were brief (one week each), and the abstract does not assess whether behavioral demand characteristics influenced self-reported well-being or whether changes persist over time.
Cited by
- supports Asking people to act extroverted and connect with others over a two-week period increases positive affect across all levels of the extroversion scale.