Factor structure of the pediatric symptom checklist with a pediatric gastroenterology sample.

Pediatric gastrointestinal disorders are commonly experienced by youth and have been shown to be associated with increased rates of psychosocial difficulties. Aim of the current study was to extend development of the Pediatric Symptom Checklist (PSC), a brief parent-completed measure designed to assess children's behavioral and emotional functioning, by examining its factor structure in a pediatric gastroenterology sample. Parents of 176 children ages 4-16 years visiting a pediatric gastroenterologist completed the PSC. The factor structure of the PSC was examined using principal component analysis. Parallel analysis was utilized to determine the number of factors to retain and indicated that three factors existed within the data. A principal component analysis with varimax rotation identified factors measuring internalizing, externalizing, and attention difficulties. The three factors that emerged on the PSC provide initial support for the utility of the PSC in pediatric gastroenterology clinics.