Self-Determination Theory and Exercise Behavior: An Examination of the Psychometric Properties of the Exercise Motivation Scale

Autor:	Steven R. Wininger
Rok vydání:	2007
Předmět:	Social desirability bias Psychometrics Convergent validity Scale (social sciences) Criterion validity Discriminant validity Psychology Applied Psychology Self-determination theory Reliability (statistics) Developmental psychology
Zdroj:	Journal of Applied Sport Psychology. 19:471-486
ISSN:	1533-1571 1041-3200
DOI:	10.1080/10413200701601466
Popis:	The purpose of these studies was to examine the psychometric properties of the Exercise Motivation Scale (EMS). One hundred forty-three undergraduates were surveyed in Study 1. Internal consistency reliability estimates ranged from .75 to .90 for the eight subscales. Discriminant validity was established via non-significant correlations with social desirability bias. The factor structure was confirmed by examining the intercorrelations of the EMS subscales which revealed a tenable simplex pattern. Differences on EMS subscales for participants at different Stages of Change supported group differentiation validity. Study 2 employed 58 undergraduates. Criterion validity was established by relationships between EMS subscales and distance walked during a self-selected intensity bout of exercise. A strong correlation between Exercise Identity Scale scores and integrated subscale scores supported the convergent validity of the integrated subscale. Overall the EMS yielded reliable scores and provided a valid mean...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da11a4ab83d7be849cd2f8b8587919c8 https://doi.org/10.1080/10413200701601466 Zobrazit plný text záznamu