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Publications [#337111] of Scott H. Kollins

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Journal Articles

  1. Lunsford-Avery, JR; Kollins, SH; Mitchell, JT (2018). Sluggish Cognitive Tempo in Adults Referred for an ADHD Evaluation: A Psychometric Analysis of Self- and Collateral Report.. Journal of Attention Disorders, 1087054718787894. [doi]
    (last updated on 2019/04/18)

    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.

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