Date of Conferral







Amy Hakim


Positive psychological capital (PsyCap), a second-order construct formed from optimism, hope, resilience, and self-efficacy, has predicted the performance and psychological well-being of a variety of full-time workers, and mediators of the relationships between PsyCap and performance and psychological well-being have rarely been examined. Using self-determination theory, broaden-and-build theory, and the conceptual framework of positive psychology, this study was an exploration of (a) the relationships among PsyCap, (b) basic psychological need satisfaction (i.e., autonomy, competence, relatedness), and (c) psychological well-being and performance using a sample of 103 working actors and stunt people. A serial mediation model was proposed whereby PsyCap predicted performance through need satisfaction and psychological well-being. Statistically significant bivariate correlations were found among PsyCap, autonomy, competence, relatedness, psychological well-being, and performance. Multiple regression analyses yielded indirect effects tested for statistical significance using bias-corrected bootstrapping. Results showed a total indirect effect of PsyCap on psychological well-being through need satisfaction and a specific indirect effect of PsyCap on psychological well-being through relatedness. Results showed no total indirect effect for PsyCap on performance through need satisfaction but did show a specific indirect effect of PsyCap on performance through relatedness. No statistically significant indirect effects of autonomy, competence, and relatedness on performance through psychological well-being were found. Theoretical and practical implications for future researchers, independent workers, and organizations supporting independent workers are discussed.