Proed Attention-Deficit/Hyperactivity Disorder Test–Second Edition (ADHDT-2) - 1 Kit

Deficit/Hyperactivity Disorder Test, now in its second edition helps teachers, parents, and clinicians identify ADHD in individuals and estimate its severity. It’s based on the 2013 diagnostic criteria for attention-deficit/hyperactivity disorder adopted by the APA and published in the Diagnostic and Statistical Manual of Mental Disorders–Fifth Edition (DSM-5). The test yields standard scores, percentile ranks, severity levels, and probability of ADHD.

Internal consistency (content sampling) reliability coefficients for the subscales exceed .85 and the ADHD Index exceeds .96.Test-retest (time sampling) reliability coefficients exceed .80 for subscales and .84 for the ADHD Index.Interrater reliability intraclass coefficients exceed .80 and .90 for the ADHD Index.Correlations of the ADHDT-2 scores with those of other well-known diagnostic tests for ADHD are large or very large in magnitude.All new validity studies show that the test results are valid for a wide variety of subgroups, as well as for the general population.Diagnostic accuracy studies indicate that the ADHDT-2 is able to discriminate children with attention-deficit/hyperactivity disorder from typical children without ADHD (i.e., sensitivity = .90, specificity = .82, ROC/AUC = .95.Confirmatory and exploratory factor analyses demonstrate the theoretical and empirical validity of the subscales.