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Who cooperates and why? Investigations of the roles of individual differences and reputation in cooperative behaviours.

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dc.contributor.advisor Barclay, Pat
dc.contributor.author Rotella, Amanda
dc.date.accessioned 2020-05-01T18:41:14Z
dc.date.available 2020-05-01T18:41:14Z
dc.date.copyright 2020-04-30
dc.date.created 2020-03-30
dc.date.issued 2020-05-01
dc.identifier.uri http://hdl.handle.net/10214/17893
dc.description.abstract In this doctoral dissertation, I apply evolutionary and ecological theories to investigate psychological mechanisms that influence cooperative behaviour. Additionally, I investigate how individual differences in prosociality influence these mechanisms, and what contributes to the development of these individual differences in prosociality. I emphasize the role of reputational consequences (i.e., in fitness costs/benefits), and how trade-offs in costs/benefits vary depending on individual differences. I also investigate the underlying trade-offs that contribute to how individual differences in prosociality are developed. In chapters 1 and 2, I investigate how individual differences in prosociality relate to responsivity to moral licensing and cleansing effects (Chapter 1), and the watching eyes effect (Chapter 2). Although I did not find moral licensing or cleansing effects (nor individual difference therein), I conducted a meta-analysis of the underlying effect responsible for moral licensing. I demonstrate that the moral licensing effect is larger when people are observed during the first of two moral actions. After correcting for publication bias, the effect was no different than zero when people where unobserved, suggesting that moral licensing is a reputation-based effect, and not a self-image effect (Chapter 1). In Chapter 2, I failed to replicate the “watching eyes” effect. However, I provide evidence of a partial replication that individual differences in social value orientation (SVO) related to responses to cues of observation. People who were less prosocial (i.e., SVO egoists) gave less in anonymous conditions (but not public conditions) than did those who were more prosocial (i.e., SVO prosocials; Chapter 2). Lastly, in Chapter 2, I use an ecological and biological markets approach to investigate why some people are more cooperative that others. Across three studies and four measures of prosocial personality, I show that dominance, risk-taking, impulsivity, family stress, and socio-sexual orientation have the most predictive validity of prosocial personalities. I provide structural equation models as proof of concept that early childhood stress and embodied capital predict these variables, which in turn predict prosociality (Chapter 3). I conclude by advancing future lines of investigation about how a strong theoretical approach based on reputation and individual differences can advance our understanding of well-established social effects. en_US
dc.description.sponsorship Social Sciences and Humanities Research Council of Canada en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject cooperation en_US
dc.subject individual differences en_US
dc.subject personality en_US
dc.subject reputation en_US
dc.subject prosociality en_US
dc.subject eyes effect en_US
dc.subject moral licensing en_US
dc.subject social psychology en_US
dc.subject honesty-humility en_US
dc.subject social value orientation en_US
dc.title Who cooperates and why? Investigations of the roles of individual differences and reputation in cooperative behaviours. en_US
dc.type Thesis en_US
dc.degree.programme Psychology en_US
dc.degree.name Associate Diploma in Agriculture en_US
dc.degree.department Department of Psychology en_US
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