Statistics Tutorials and Data Analysis Guides

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

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

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

Convergent Validity: Academic Achievement has strong convergence. Educational Advantage and Social-Alcohol Exposure are borderline because their AVE values…

Eigenvalues: The first three observed roots exceed one and the fourth does not, which is consistent with a three-dimension solution. The retention decision…

Content Validity: Relevance agreement is excellent at the scale level, while the lower mean CVR shows that experts were less unanimous about whether every…

Discriminant Validity: All pairwise HTMT estimates and the reported upper confidence bound are well below conservative references, supporting separation…

Factor Analysis in SPSS: The verified SPSS workflow requests KMO and Bartlett, principal-axis factoring, a fixed three-factor solution supported externally…

Criterion Validity: The engagement index has a moderate association with G3 and useful but imperfect discrimination of the success threshold. The evidence…

Factor Analysis in R: The audited R workflow uses the nine declared variables, checks KMO and Bartlett, retains three factors through parallel analysis…