Behavioral regulation in sport questionnaire and sport motivation scale-II: a scale comparison.

ABSTRACT:

Introduction

This study compared the psychometric properties of two primary instruments for assessing sport motivation based on Self-Determination Theory: the Sport Motivation Scale-II (SMS-II) and the Behavioral Regulation in Sport Questionnaire (BRSQ).

Methods

A cross-sectional analysis evaluated the scales' internal consistency, factor structure, convergent and discriminant validity, and model fit, which required post-hoc modifications. Measurement invariance and adherence to the theoretical simplex pattern were also tested.

Results

The BRSQ demonstrated generally acceptable reliability, while the SMS-II showed deficiencies in its introjected, external, and amotivation subscales. Both scales faced validity challenges in distinguishing adjacent motivational construc

SUBMITTER: Bica J 

PROVIDER: S-EPMC12460324 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature