{"anticipatedPostingDate":"2011-07","denoms":[{"counts":[{"groupId":"OG000","value":"0"}],"units":"Participants"}],"description":"Child performance on neuropsychological testing (i.e., using Test of Variables of Attention \\[TOVA\\] which is a computerized test of attention that assists in the screening, diagnosis, and treatment monitoring of attention disorders, like Attention Deficit Hyperactivity Disorder \\[ADHD\\], and working memory index of the WisSC IV. Standard scores average = 100 +/- 15. Higher scores indicate better performance. Scores \\< or = 1 SD below the mean represent area of deficit.","groups":[{"description":"Participant previously had acute lymphoblastic leukemia or brain tumor to be treated with Methylphenidate or Placebo - Administered 1 capsule each day for 1 week, .3 mg/kg dose.","id":"OG000","title":"Participant With Attention Deficit"}],"populationDescription":"No patients received treatment, therefore analysis was not done.","reportingStatus":"POSTED","timeFrame":"Week 1 and Week 2","title":"Effectiveness of Methylphenidate on Neurocognitive Components","type":"PRIMARY"}