Intra-individual changes in 3x2 achievement goals, friendship goals, motivational regulations and consequences in physical education

Introduction: This research examines intraindividual changes in 3x2 achievement goals in physical education classes during one semester, as well as the relationship of these changes with those in other motivational and outcome variables. Method: A total of 334 (178 boys and 156 girls) high school students (M = 13.12, SD = 1.05) completed five questionnaires in two different school years. Results: The results of the true intraindividual change model (TIC) provided unequivocal support for the separation of task-based and self-based goals, as well as the structures based on both valences of approach and avoidance. They also showed different intraindividual change patterns in the 3x2 achievement goals, indicating a progression in the stability of the goals depending on their definition. Intraindividual variability in achievement goals is directly related to intraindividual variability in dependent variables, with the task-approach goals TIC being the most adaptive. Conclusions: These goals should be prioritized.