Test, Revision, and Cross-Validation of the Physical Activity Self-Definition Model

Structural equation modeling was used to test all extended version of the Kendzierski, Furr, and Schiavoni (1 1998) Physical Activity Self-Definition Model. A revised model using data from 622 runners fit the data well. Cross-validation indices Supported the revised model. and this model also provided a good fit to data from 397 cyclists. Partial invariance was found across activities. In both samples, perceived commitment and perceived ability had direct effects oil self-definition, and perceived wanting, perceived trying. and enjoyment had indirect effects. The contribution of perceived ability to self-definition did not differ across activities. Implications concerning the original model, indirect effects, skill salience. and the role of context in self-definition are discussed.