Sluggish Cognitive Tempo in Adults Referred for an ADHD Evaluation: A Psychometric Analysis of Self- and Collateral Report.
J Atten Disord. 2018 Jul 01;:1087054718787894
Authors: Lunsford-Avery JR, Kollins SH, Mitchell JT
Abstract
OBJECTIVE: Sluggish cognitive tempo (SCT) symptoms uniquely contribute to psychiatric and functional outcomes in child samples; however, the psychometric properties of SCT measures among adult outpatients are unknown.
METHOD: Adults ( n = 124) presenting for an ADHD evaluation provided self- and collateral report of SCT symptoms.
RESULTS: The SCT scale had good internal consistency and yielded three factors across raters: Slow/Daydreamy, Sleepy/Sluggish, and Low Initiation/Persistence. SCT scores exhibited convergent validity with ADHD symptoms across raters. Individuals with ADHD received higher SCT ratings than those without ADHD via collateral report, a pattern that was similar when comorbidity was considered. SCT was associated with poorer functioning after accounting for ADHD symptoms with some differential effects based on reporting source.
CONCLUSION: Findings support the internal consistency and validity of a three-factor SCT scale among adult outpatients. Differential results between self- and collateral report demonstrate the importance of multiple reporters of SCT in clinical settings.
PMID: 30024295 [PubMed – as supplied by publisher]
via https://www.ncbi.nlm.nih.gov/pubmed/30024295?dopt=Abstract