The convergent validity and clinical utility of two parent-report child behavior rating scales, the Behavior Assessment System for Children-Parent Rating Scales (BASC-PRS) and Child Behavior Checklist/Ages 6-18 (CBCL), in children with epilepsy were examined. Analogous broadband and narrowband behavior rating scales were evaluated in 60 subjects aged 6-17 years (mean=11.0, SD=3.4) with Full Scale IQ >70. Correlations for each similarly labeled scale were statistically significant (P<0.002) and greater with broadband (r=0.71-0.79) than with narrowband (r=0.41-0.78) scales. The BASC captured significantly less composite internalizing symptoms (P<0.002), but more unusual thought processes (P<0.0002) and attention problems versus a CBCL DSM-oriented attention-deficit/hyperactivity disorder scale (P<0.002). Variation in the correlations between measures may stem from underlying differences between rationally-and empirically-derived approaches to test construction. Both the CBCL and BASC have diagnostic and clinical utility in assessing behavior problems in pediatric epilepsy.