The content scales can be used to supplement, extend, confirm, and refine interpretations derived from the basic validity and standard clinical scales. Furthermore, some of the content scales (e.g., TPA/Type A, WRK/Work Interference) provide additional information not included in the clinical scales. The adult content scales are divided into the clusters of internal symptoms, external aggressive tendencies, negative self-view, and general problem areas. Similarity , the adolescent content scales are divided into scales reflecting interpersonal functioning, treatment recommendations, and academic difficulties (see Content Scales section).