Correlation matrix of measured variables with internal consistency, means, standard deviations, and ranges (Wave 1).

* p < .05 ** p < .01 *** p < .001 PA = positive affect and NA = negative affect (Positive and Negative Affect Schedule); SHS = Subjective Happiness Scale; SWLS = Satisfaction with Life Scale; HPS = Hypomanic Personality Scale. Extraversion (E) and neuroticism (N) were measured with the Big Five Aspects Scale: assertiveness (EA) and enthusiasm (EE) are aspects of extraversion; volatility (NV) and withdrawal (NW) are aspects of neuroticism. ASRM = Altman Self-Rating Mania Scale; BDI = Beck Depression Inventory-Short Form. Numbers on the main diagonal denote Cronbach's alphas as measures of internal consistency. Correlation matrix of measured variables with internal consistency, means, standard deviations, and ranges (Wave 1).