Concurrent validity of the pediatric attention disorders diagnostic screener for children with ADHD

The present study examined the concurrent validity of a new computer-assisted ADHD screening system, the Pediatric Attention Disorders Diagnostic Screener (PADDS; Pedigo, Pedigo, & Scott, 2006) in relation to the Test of Variables of Attention (TOVA; Greenberg, 1999), the Conner's Continuous Performance Test- II (CPT-II; Conners & MHS Staff, 2000), and the Behavior Rating Inventory of Executive Function (BRIEF; Gioia, Isquith, Guy, & Kenworthy, 2000) in three clinically referred samples of children 6 to 12 years of age. The PADDS is a recently published multidimensional screening measure that incrementally merges computer-administered executive tasks with parent and teacher behavior ratings to aid in the diagnostic decision-making process for youth with attention disorders. To date, no published study has examined the concurrent validity of the PADDS. In a clinic-referred sample of 217 subjects diagnosed with ADHD concurrent validity was assessed through correlation coefficients, paired t-tests (p < .001), and Cohen's d effect sizes. In comparison to the TOVA, the CPT-II, and the BRIEF scales, the PADDS demonstrated strong concurrent validity between conceptually similar scales, providing initial evidence for the concurrent validity of the PADDS. Relative to other measures, the PADDS appears to have some unique scales designed to assess attention and various aspects of executive functioning.