Validity, Factor Analysis and Scale Testing

Average Variance Extracted: Academic Achievement clearly exceeds the conventional .50 reference. Educational Advantage and Social-Alcohol Exposure fall…

Bartletts Test of Sphericity: The very large chi-square relative to 36 degrees of freedom rejects the identity-matrix null. Factor analysis is statistically…

CFI: CFI = 0.997823 indicates that the target model improves dramatically over the independence model. The conclusion remains conditional on correct…

Chi Square Fit Test: For chi-square = 30.530 with 24 degrees of freedom, p = 0.167787 does not reject exact fit at .05. That favorable test should be read…

Communalities: G2, G3, and Walc are strongly reproduced by the retained factors. TravelAccess is poorly reproduced, so its loading pattern, item meaning…

Composite Reliability: Academic Achievement shows very high composite reliability. Educational Advantage is marginal and Social-Alcohol Exposure is…

Confirmatory Composite Analysis: The reported composite scores produce a positive Educational Advantage path, a negative Social-Alcohol Exposure path…

Confirmatory Factor Analysis: The three-factor CFA has very favorable global fit, but the TravelAccess loading is weak. The model should therefore be…

Construct Validity: The current evidence is favorable for overall model structure and separation, but weak local measurement for TravelAccess and sub-.50…

Covariance Based SEM: The covariance model shows excellent global fit and a modest latent structural R-squared. The paths are interpreted only after the…