External validation of the Personality Inventory for Children (PIC) profile and factor scales: Parent, teacher, and clinician ratings
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Attempted to expand the construct validity of the standard profile and the recently developed factor scales for the PIC by determining the relationship of these scales to empirically derived dimensions of problem behaviors in children and adolescents. Extensive behavioral ratings of 398 2-12 yr old children and 293 13-18 yr old adolescents were obtained on 3 criterion checklists completed by parents, teachers, and clinicians. Ratings on these 3 forms were submitted to iterative common factor analysis with varimax rotation and yielded 5, 7, and 7 problem-behavior dimensions, respectively. T scores on the 16 clinical profile and the 4 PIC factor scales were correlated with the problem behavior dimensions separately for male children, male adolescents, female children, and female adolescents. The resulting correlation matrices permitted identification of scale correlates and estimates of their generalizability across age and sex. Results provide evidence of convergent and discriminant validity for both broad-band factor and narrow-band profile scales. The increased utility of the PIC accruing from the availability of both broad- and narrow-band measures of psychopathology is discussed, and suggestions for clinical and research application are noted. (19 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved). 1984 American Psychological Association.
