Foreign Countries, Anxiety, Affective Measures, Gender Differences, Age Differences, Adolescents, Test Reliability, Factor Structure, Scores, Statistical Analysis, Goodness of Fit

This study examined the factorial invariance and latent mean differences of the School Anxiety Inventory-Short Version across gender and age groups for 2,367 Spanish students, ranging in age from 12 to 18 years. Configural and measurement invariance were found across gender and age samples for all dimensions of the School Anxiety Inventory-Short Version.