The Clinical Assessment of Attention-Adult (CAT-A) is a self-report measure of retrospective and current symptoms of ADHD. Its validity scales have been minimally studied. The current study examined concordance rates between symptom validity scales of the CAT-A (i.e., Negative Impression [NI], Positive Impression [PI], Infrequency [IF]) and those of the well-validated MMPI-2-RF. Scales were dichotomized as elevated or not elevated based on cutoffs recommended in respective test manuals. A sample of 114 college students clinically evaluated for possible ADHD was studied after removing those with elevated/invalid non-content-based responses (VRIN and TRIN). Results revealed a non-significant concordance rate of 54.4% between individuals who invalidated at least one scale on either measure. IF was not significantly associated with any MMPI-2-RF scales, while NI was associated with all but FBS-r; concordance rates ranged from 71% (Fr) to 79.7% (RBS). This association of NI and lack thereof of IF with F-r, Fp-r, and Fs suggest that the CAT-A validity scales capture something different than the MMPI-2-RF. However, the CAT-A was specifically designed to assess for invalidity in the context of ADHD and remains one of the few available ADHD measures with validity scales. Future research should continue examining its accuracy in detecting feigned ADHD.
|First Author||Michelle Joyce Chen|
|Second Author||Grace Schroeder|
|Third Author||George Demakis|