Self-ratings of ADHD symptomas in auts II: Reliability, validity, and diagnostic sensitivity

Abstract

Background: The Conners' Adult ADHD Rating Scale (CAARS) was designed to assess the manifestations of ADHD in adults. Prior factor analyses suggested a 4-factor structure for the CAARS, includingdimensions related to Inattention/Cognitive Problems, Hyperactivity/Restlessness, Impulsivity/Emotional Liability, and Problems with Self-Concept. Method: The internal consistency, test-retest reliability, concurrent validity, criterion validity, and diagnostic utility for the CAARS were examined. Results: Coefficient alphas ranged from .86 to .92. Median test-retest reliability for the four factors was .89. Al/ four CAARS factors correlated significantly with scores from an established measure used in the evaluation of ADHD in adults. Criterion validity was assessed on the basis of comparisons of matched samples with and without ADHD. Sensitivity and specificity were high, with an overall diagnostic efficiency rate of 85%. Conclusion: The CAARS provides researchers and clinicians with a carefully constructed and psychometrically sound scale for the evaluation of current ADHD symptomatology in adults.