This study investigates relations between the five-factor model (FFM) and self-determination theory in predicting well-being. Nine-hundred-and-sixty-four students completed e-based measures of extroversion & neuroticism (NEO-FFI); autonomous- & impersonal general causality orientation (GCOS) and positive- & negative affect (PANAS). Correlation analysis showed moderate positive relationships between extroversion, autonomous and positive affect; neuroticism, impersonal and negative affect. Regression analysis revealed that autonomous explained additional 2% of variance in positive affect, when controlling for extroversion (P<0,001). However impersonal did not explain variance in negative affect when controlling for neuroticism. Self-Determination Theory seems inadequate in explaining variance in well-being supporting an integration with FFM.
International Journal of Psychology, 2008, Vol 43, Issue 3/4