Fig. 2From: Dimensionality of the Pittsburgh Sleep Quality Index in the young collegiate adultsConfirmatory factor analysis models of the Pittsburgh Sleep Quality Index in the collegiate young adults. All coefficients are standardized. Ovals latent variables, rectangles measured variables, circles error terms, single-headed arrows between ovals and rectangles factor loadings, double headed arrows correlations, single-headed arrows between circles and rectangles error termsBack to article page