CONTENT Detecting unmotivated individuals with a new model-selection approach for Rasch modelsJochen Ranger & Jörg-Tobias KuhnFull article .pdf (Diamond Open Access) Theoretical framework, factorial structure and measurement invariance of the Video Game Playing Motives Questionnaire (VGPM-Q) for preadolescentsEva-Maria Schiller, Dagmar Strohmeier & Christiane SpielFull article .pdf (Diamond Open Access)...