Tests of factorial structure and measurement invariance for the Student Engagement Instrument: Evidence from middle and high school students in Portugal See

The Academic Performance Stages of Change Inventory (APSCI): An application of the Transtheoretical Model to academic performance See

Functions of Identity in the Context of Being a Student: Development and Validation of the Functions of Student Identity Scale See

Achievement Emotions Questionnaire-Mathematics (AEQ-M) in Adolescents: Factorial structure, measurement invariance and convergent validity with personality See