17-item OSPRO-YF four-factor model structure and resulting standardized parameter estimates; a summary of the fit statistic results is also shown; GFI=Goodness of Fit (>0.9, good); CFI=Comparative Fit Index (>0.95, good; >0.9 acceptable); RMSEA=Root Mean Square Error Approximation (<0.06, good; <0.08, acceptable); p-close refers to a value that tests the RMSEA confidence interval (p-close>0.05, reject null hypothesis of poor fit).