Friends Know Us Even When They Are Different From Us
Accuracy and Bias in Self–Other Perceptions of the Big Five
Abstract
Abstract: Friendships pervade people’s social lives across their lifespans. But how accurately can friends perceive each other’s personalities? Person perceptions are typically a mixture of fact and fiction, but as friends share a lot of information, they should be able to form relatively accurate assessments. We referred to the truth and bias model of judgment to study accuracy in friendship dyads (N = 190). Participants completed self- and peer-rating versions of the Big Five Inventory-10. Actor-partner interdependence models were used to decompose truth and bias forces: Friends achieved significant perceptual accuracy on each Big Five trait. Friends were actually rather similar in conscientiousness and also assumed they were similar to each other in this trait. For agreeableness, there was no actual but there was assumed similarity. There was neither actual nor assumed similarity for openness, extraversion, or neuroticism. Moreover, there was a considerable directional bias for all traits: Friends’ peer-ratings were positively biased: They assessed their friends as being more open, and conscientious, et cetera, than the friends did themselves. This research adds to the similarity-dissimilarity debate in social and personality psychology and the social perception literature in employing a sophisticated assessment of accuracy.
References
2020). Power analysis for the actor-partner interdependence model [Software]. https://robert-ackerman.shinyapps.io/APIMPowerR
(2013). Self–other agreement and assumed similarity in neuroticism, extraversion, and trait affect: Distinguishing the effects of form and content. Assessment, 20(6), 723–737. https://doi.org/10.1177/1073191113500521
(2013). Adult friendship. Sage.
(2009).
(Friendship as process, function, and outcome . In K. H. RubinW. M. BukowskiB. LaursenEds., Handbook of peer interactions, relationships, and groups (pp. 217–231). Guilford Press.1971). The attraction paradigm. Academic Press.
(1976). Basking in reflected glory: Three (football) field studies. Journal of Personality and Social Psychology, 34(3), 366–375. https://doi.org/10.1037/0022-3514.34.3.366
(2020). Laelius de amicitia
([On friendship] (W. M. Pahl , Trans.). https://www.gottwein.de/Lat/cic_philos/Lael01.php (Original work published 40 BCE)1974).
(A reinforcement-affect model of attraction . In T. L. HustonEd., Foundations of interpersonal attraction (pp. 143–165). Academic Press.2013). Agreement and similarity in self-other perceptions of moral character. Journal of Research in Personality, 47(6), 816–830. https://doi.org/10.1016/j.jrp.2013.08.009
(2010). An other perspective on personality: Meta-analytic integration of observers’ accuracy and predictive validity. Psychological Bulletin, 136(6), 1092–1122. https://doi.org/10.1037/a0021212
(2007). The convergent validity between self and observer ratings of personality: A meta-analytic review. International Journal of Selection and Assessment, 15(1), 110–117. https://doi.org/10.1111/j.1468-2389.2007.00371.x
(2002). Personality and close relationships: Embedding people in important social contexts. Journal of Personality, 70(6), 757–782. https://doi.org/10.1111/1467-6494.05023
(1992). Four ways five factors are basic. Personality and Individual Differences, 13, 653–665. https://doi.org/10.1016/0191-8869(92)90236-I
(2013). Do birds of a feather flock together? Human Nature, 24(3), 336–347. https://doi.org/10.1007/s12110-013-9174-z
(1998). Partner verification: Restoring shattered images of our intimates. Journal of Personality and Social Psychology, 75(2), 374–382. https://doi.org/10.1037/0022-3514.75.2.374
(2010). Through the eyes of love: Reality and illusion in intimate relationships. Psychological Bulletin, 136(4), 627–658. https://doi.org/10.1037/a0019792
(1988). Friends and strangers: Acquaintanceship, agreement, and the accuracy of personality judgment. Journal of Personality and Social Psychology, 55(1), 773–794. https://doi.org/10.1037/0022-3514.55.1.149
(2019). Evaluating effect size in psychological research: Sense and nonsense. Advances in Methods and Practices in Psychological Science, 2(2), 156–168. https://doi.org/10.1177/2515245919847202
(2004). Bias and accuracy in close relationships: An integrative review. Personality and Social Psychology Review, 8(4), 322–338. https://doi.org/10.1207/s15327957pspr0804_1
(2003). A very brief measure of the Big-Five personality domains. Journal of Research in Personality, 37(6), 504–528. https://doi.org/10.1016/S0092-6566(03)00046-1
(2016). On friendship development and the Big Five personality traits. Social and Personality Psychology Compass, 10(11), 647–667. https://doi.org/10.1111/spc3.12287
(1927). The notebook of Elbert Hubbard. Wise & Co.
(2020). Accuracy in perceptions of fundamental social motives: Comparisons to perceptions of big five traits and associations with friendship quality. Personality and Social Psychology Bulletin, 46(1), 3–19. https://doi.org/10.1177/0146167219838546
(1993). Determinants of interjudge agreement on personality traits: The Big Five domains, observability, evaluativeness, and the unique perspective of the self. Journal of Personality, 61(4), 521–551.
(2001). Accuracy and bias in the perception of the partner in a close relationship. Journal of Personality and Social Psychology, 80(3), 439–448. https://doi.org/10.1037/0022-3514.80.3.439
(2006). Dyadic data analysis. Guildford Press.
(2019). Self–other agreement in personality reports: A meta-analytic comparison of self-and informant-report means. Psychological Science, 30(1), 129–138. https://doi.org/10.1177/0956797618810000
(2022). Supplemental material to “Friends know us even when they are different from us: accuracy and bias in self–other perceptions of the Big Five”. https://osf.io/f4k7r/
(2009). Similarity and assumed similarity in personality reports of well-acquainted persons. Journal of Personality and Social Psychology, 96(2), 460–472. https://doi.org/10.1037/a0014059
(2005). Who are the people reluctant to participate in research? Personality correlates of four different types of nonresponse as inferred from self-and observer ratings. Journal of Personality, 73, 959–984. https://doi.org/10.1111/j.1467-6494.2005.00335.x
(2001). Birds of a feather: Homophily in social networks. Annual Review of Sociology, 27(1), 415–444. https://doi.org/10.1146/annurev.soc.27.1.415
(2008). Is actual similarity necessary for attraction? A meta-analysis of actual and perceived similarity. Journal of Social and Personal Relationships, 25(6), 889–922. https://doi.org/10.1177/0265407508096700
(1997). A leap of faith? Positive illusions in romantic relationships. Personality and Social Psychology Bulletin, 23(6), 586–604. https://doi.org/10.1177/0146167297236003
(1996). The benefits of positive illusions: Idealization and the construction of satisfaction in close relationships. Journal of Personality and Social Psychology, 70(1), 79–98. https://doi.org/10.1037/0022-3514.70.1.79
(2006). Structural equation modeling with interchangeable dyads. Psychological Methods, 11(2), 127–141. https://doi.org/10.1037/1082-989X.11.2.127
(2018). Resilience and Big Five personality traits: A meta-analysis. Personality and Individual Differences, 127, 54–60. https://doi.org/10.1016/j.paid.2018.01.048
(2015). Attachment insecurity, biased perceptions of romantic partners’ negative emotions, and hostile relationship behavior. Journal of Personality and Social Psychology, 108(5), 730–749. https://doi.org/10.1037/a0038987
(2013). The many faces of assumed similarity in perceptions of personality. Journal of Research in Personality, 47(6), 800–815. https://doi.org/10.1016/j.jrp.2013.08.007
(2007). Measuring personality in one minute or less: A 10-item short version of the Big Five-Inventory in English and German. Journal of Research in Personality, 41(1), 203–212. https://doi.org/10.1016/j.jrp.2006.02.001
(2000). Perceived superiority in close relationships: Why it exists and persists. Journal of Personality and Social Psychology, 79(4), 521–545. https://doi.org/10.1037/0022-3514.79.4.521
(2005). Mate choice and friendship in twins: Evidence for genetic similarity. Psychological Science, 16(7), 555–559. https://doi.org/10.1111/j.0956-7976.2005.01574.x
(1997). Assertive, offensive, and defensive self-presentation. A taxonomy. Journal of Psychology, 132, 611–628. https://doi.org/10.1080/00223989809599293
(2017).
(Positive illusions and the happy mind . In M. D. RobinsonM. EidEds., The happy mind: Cognitive contributions to well-being (pp. 177–193). Springer.2009). In the eye of the beholder: Perceived, actual, and peer-rated similarity in personality, communication, and friendship intensity during the acquaintanceship process. Journal of Personality and Social Psychology, 96(6), 1152–1165. https://doi.org/10.1037/a0014468
(1988). Illusion and well-being: A social psychological perspective on mental health. Psychological Bulletin, 103(2), 193–210. https://doi.org/10.1037/0033-2909.103.2.193
(2020). Seeing me, seeing you: Testing competing accounts of assumed similarity in personality judgments. Journal of Personality and Social Psychology, 118(1), 172–198. https://doi.org/10.1037/pspp0000222
(2015). Idiosyncratic versus social consensus approaches to personality: Self-view, perceived, and peer-view similarity. Journal of Personality and Social Psychology, 109(1), 121–141. https://doi.org/10.1037/pspp0000035
(2010). Who knows what about a person? The self–other knowledge asymmetry (SOKA) model. Journal of Personality and Social Psychology, 98(2), 281–300.
(2010). Self-knowledge of personality: Do people know themselves? Social and Personality Psychology Compass, 4(8), 605–620. https://doi.org/10.1111/j.1751-9004.2010.00280.x
(2000). Self–other agreement in personality and affectivity: The role of acquaintanceship, trait visibility, and assumed similarity. Journal of Personality and Social Psychology, 78(3), 546–558. https://doi.org/10.1037/0022-3514.78.3.546
(2006). Personality development in emerging adulthood: Integrating evidence from self-ratings and spouse ratings. Journal of Personality and Social Psychology, 91(5), 959–974. https://doi.org/10.1037/0022-3514.91.5.959
(2017). Big Five traits and relationship satisfaction: The mediating role of self-esteem. Journal of Research in Personality, 69, 102–109. https://doi.org/10.1016/j.jrp.2016.06.001
(2011). The truth and bias model of judgment. Psychological Review, 118(2), 357–378. https://doi.org/10.1037/a0022936
(2015). Personality and friendship satisfaction in daily life: Do everyday social interactions account for individual differences in friendship satisfaction? European Journal of Personality, 29(2), 173–186. https://doi.org/10.1002/per.1996
(2015).
(Friendships in young and middle adulthood: Normative patterns and personality differences . In M. HojjatA. MoyerEds., The psychology of friendship (pp. 21–38). Oxford University Press.2017). Birds of a feather do flock together: Behavior-based personality-assessment method reveals personality similarity among couples and friends. Psychological Science, 28(3), 276–284. https://doi.org/10.1177/0956797616678187
(2014). Short scales – Five misunderstandings and ways to overcome them. Journal of Individual Differences, 35(4), 185–189. https://doi.org/10.1027/1614-0001/a000148
(1999). Stability, change and individual differences in involvement with friends and romantic partners among adolescent females. Journal of Youth and Adolescence, 28(4), 419–438. https://doi.org/10.1023/A:1021612907073
(