The purpose of this study was to provide initial construct validity evidence for scores derived from the Psychological Need Satisfaction in Exercise (PNSE) scale, a multidimensional instrument designed to measure perceived psychological need satisfaction in line with Deci and Ryanʼs (1985, 2002) self-determination theory (SDT). Participants in two studies (n1 = 426; n2 = 581) completed the PNSE along with proxy measures of need satisfaction. The results of an exploratory factor analysis in Study 1 supported the retention of a 3-factor measurement model underpinning PNSE responses. Confirmatory factor analysis conducted in Study 2 corroborated the tenability of the 3-factor measurement model in males and females and indicated partial support for invariance of PNSE scores across gender. Additionally, the scores on both the PNSE-Competence and PNSE-Relatedness subscales displayed a pattern of convergence with proxy measures. High internal consistency estimates (Cronbach α > 0.90) were observed for all PNSE subscale scores, and participants in both studies reported high levels of need satisfaction in exercise contexts. Overall, the findings suggest that the PNSE displays a number of psychometric characteristics that render the instrument useful for examining psychological need satisfaction in exercise contexts.
Faculty of Applied Health Sciences, Brock Univ., St. Catharines, ON, L2S 3A1 Canada
Centre for Applied Measurement and Evaluation, 6-110 Educ. North, Univ. of Alberta, Edmonton, AB, T6G 2G5
Faculty of Phys Ed & Rec, Univ. of Alberta, Edmonton, AB, T6G 2H9
Faculty of Medicine & Dentistry, 13-103 Clin. Sciences Bldg, Univ. of Alberta, Edmonton, AB, T6G 2G3 Canada.