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Link to original content: https://pubmed.ncbi.nlm.nih.gov/9234034/
Effects of methylphenidate and expectancy of ADHD children's performance, self-evaluations, persistence, and attributions on a cognitive task - PubMed Skip to main page content
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Clinical Trial
. 1997 Feb;5(1):3-13.
doi: 10.1037/1064-1297.5.1.3.

Effects of methylphenidate and expectancy of ADHD children's performance, self-evaluations, persistence, and attributions on a cognitive task

William E Pelham  1 , Betsy Hoza, Heidi L Kipp, Elizabeth M Gnagy, Sarah T Trane
Affiliations
Clinical Trial

Effects of methylphenidate and expectancy of ADHD children's performance, self-evaluations, persistence, and attributions on a cognitive task

William E Pelham et al. Exp Clin Psychopharmacol. 1997 Feb.

Abstract

The effects of 0.3 mg/kg methylphenidate (MPH) and expectancy regarding medication on the performance and task persistence of 60 boys with attention deficit hyperactivity disorder (ADHD) were investigated. In a balanced-placebo design, boys in 4 groups (received placebo/drug crossed with told placebo/drug) completed the task in success and failure conditions. Medication improved participants' task persistence following failure. Participants' task performance was not affected by whether they thought they had received medication or placebo. Children made internal attributions for success and made external attributions for failure, regardless of medication or expectancy. These findings confirm previous reports that it is the pharmacological activity of MPH that affects ADHD children's self-evaluations and persistence. The results contradict anecdotal reports that MPH causes dysfunctional attributions and confirm previous studies showing that medication does not produce adverse effects on the causal attributions of children with ADHD.

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