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ABSTRACT
Against the background of a dearth of studies examining the properties of the scale scores of the Personality Assessment Inventory–Adolescent (PAI–A; Morey, 2007), this study was conducted to evaluate evidence of construct validity for the Anxiety (ANX) and Depression (DEP) scales of the PAI–A. Convergent and discriminant validity of the ANX and DEP scale scores were investigated using a sample of adolescents admitted to the adolescent program of a private tertiary care inpatient treatment facility. Multiple methods assessing anxious and depressive symptomology and diagnoses were included. Construct validity of the ANX and DEP scales was mostly supported. Advantages of using the PAI–A for the assessment of anxiety and depression were discussed.