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Publications [#275074] of John S. March

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Papers Published

  1. CK Conners, JN Epstein, JS March, A Angold, KC Wells, J Klaric, JM Swanson, LE Arnold, HB Abikoff, GR Elliott, LL Greenhill, L Hechtman, SP Hinshaw, B Hoza, PS Jensen, HC Kraemer, JH Newcorn, WE Pelham, JB Severe, B Vitiello and T Wigal (2001). Multimodal treatment of ADHD in the MTA: an alternative outcome analysis.. J Am Acad Child Adolesc Psychiatry, 40(2), 159-167. [11211364], [doi]
    (last updated on 2016/01/27)

    Abstract:
    OBJECTIVE: To conduct a post hoc investigation of the utility of a single composite measure of treatment outcome for the NIMH Collaborative Multisite Multimodal Treatment Study of Children With Attention-Deficit/Hyperactivity Disorder (MTA) at 14 months postbaseline. BACKGROUND: Examination of multiple measures one at a time in the main MTA intent-to-treat outcome analyses failed to detect a statistically significant advantage of combined treatment (Comb) over medication management (MedMgt). A measure that increases power and precision using a single outcome score may be a useful alternative to multiple outcome measures. METHOD: Factor analysis of baseline scores yielded two "source factors" (parent and teacher) and one "instrument factor" (parent-child interactions). A composite score was created from the average of standardized parent and teacher measures. RESULTS: The composite was internally consistent (alpha = .83), reliable (test-retest over 3 months = 0.86), and correlated 0.61 with clinician global judgments. In an intent-to-treat analysis, Comb was statistically significantly better than all other treatments, with effect sizes ranging from small (0.28) versus MedMgt, to moderately large (0.70) versus a community comparison group. CONCLUSIONS: A composite of ADHD variables may be an important tool in future treatment trials with ADHD and may avoid some of the statistical limitations of multiple measures.


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