Structural validity of the Serious Leisure Inventory Measure scale (SLIM) in different sets of athletes

The purpose of this study was to reaffirm the structural validity of the
Serious Leisure Inventory and Measure (SLIM) measure model developed
by Gould et al. and to compare the inventory model’s psychometric
performance with the alternative SLIM inventory model
developed by Romero et al. Target sampling of Sports Clubs in the
Basque Country (Spain) yielded 370 athletes of which 138 had physical
disabilities and 232 did not. The results showed that the data converged
using the Gould et al. one-factor model and supported the
use of the inventory of outcome factors as non-additive measures
resulting from serious orientations to an activity. The alternative
model tested by Romero et al. provided a three-factor solution with
psychometrically sound performance. Further specification of the SLIM
model could bolster future quantitative explorations of SL behavior.