Strong theories are sorely lacking in the applied social sciences, especially in psychology. Elko Fried (2020) identifies fundamental problems that are common in social science research and explains how these problems manifest themselves in the …
This study examines response shift in an evaluation of a computing education program in which both traditional and retrospective pretests were used across two waves of data collection, by using measurement invariance techniques.
This study fitted and compared item response models of item-level responses of different complex span tasks. Results, especially item parameters, may reveal the variety of domain specificity in different complex span tasks.
Confirmatory latent factor models on simulated data indicate that a higher-order g can emergy even without a common cause.
An example of generalized mixed effects model (GLMM) in with lmer package.
An example of item response modeling with the mirt package.