Review of the evidence suggests that  task performance  may be useful in identifying individuals with ADHD at risk for academic impairment .
However , the evidence is less compelling for identifying youth at risk for impaired social functioning or poor health outcomes .
The review also found that task performance is likely useful for predicting response to treatment with methylpheni date .
Across studies , evidence indicated that interpreting task performance in an integrated manner , such as a factor score or mean score , was more consistently useful for predicting outcomes of interest than interpreting performance from a single task .
The role that neuropsychological task performance plays in the assessment of Attention-Deficit/Hyperactivity Disorder ( ADHD ) is currently ambiguous , and findings are mixed regarding whether tasks have validity for diagnosing the disorder .
Irrespective of their validity for diagnosing ADHD , neuropsychological tasks could provide valuable information to mental health professionals if they can inform recommendations for treatment targets and modalities .
Therefore , this review sought to synthesize the available evidence related to the use of neuropsychological task performance as a tool for informing treatment planning for youth with ADHD .
Review ed studies focused on examinations of associations between task performance and academic , social , and health outcomes , as well as response to treatment .
The MTA at 8 years: prospective follow-up of children treated for combined-type ADHD in a multisite study.
OBJECTIVES To determine any long-term effects , 6 and 8 years after childhood enrollment , of the r and omly assigned 14-month treatments in the NIMH Collaborative Multisite Multimodal Treatment Study of Children With Attention-Deficit/Hyperactivity Disorder ( MTA ; N = 436 ) ; to test whether attention-deficit/hyperactivity disorder ( ADHD ) symptom trajectory through 3 years predicts outcome in subsequent years ; and to examine functioning level of the MTA adolescents relative to their non-ADHD peers ( local normative comparison group ; N = 261 ) . METHOD Mixed-effects regression models with planned contrasts at 6 and 8 years tested a wide range of symptom and impairment variables assessed by  parent , teacher , and youth report . RESULTS In nearly every analysis , the originally r and omized treatment groups did not differ significantly on repeated measures or newly analyzed variables ( e.g. , grade s earned in school , arrests , psychiatric hospitalizations , other clinical ly relevant outcomes ) . Medication use decreased by 62 % after the 14-month controlled trial , but adjusting for this did not change the results . ADHD symptom trajectory in the first 3 years predicted 55 % of the outcomes . The MTA participants fared worse than the local normative comparison group on 91 % of the variables tested . CONCLUSIONS Type or intensity of 14 months of treatment for ADHD in childhood ( at age 7.0 - 9.9 years ) does not predict functioning 6 to 8 years later . Rather , early ADHD symptom trajectory regardless of treatment type is prognostic . This finding implies that children with behavioral and sociodemographic advantage , with the best response to any treatment , will have the best long-term prognosis . As a group , however , despite initial symptom improvement during treatment that is largely maintained after treatment , children with combined-type ADHD exhibit significant impairment in adolescence . Innovative treatment approaches targeting specific areas of adolescent impairment are needed
Review of the evidence suggests that  task performance  may be useful in identifying individuals with ADHD at risk for academic impairment .
However , the evidence is less compelling for identifying youth at risk for impaired social functioning or poor health outcomes .
The review also found that task performance is likely useful for predicting response to treatment with methylpheni date .
Across studies , evidence indicated that interpreting task performance in an integrated manner , such as a factor score or mean score , was more consistently useful for predicting outcomes of interest than interpreting performance from a single task .
The role that neuropsychological task performance plays in the assessment of Attention-Deficit/Hyperactivity Disorder ( ADHD ) is currently ambiguous , and findings are mixed regarding whether tasks have validity for diagnosing the disorder .
Irrespective of their validity for diagnosing ADHD , neuropsychological tasks could provide valuable information to mental health professionals if they can inform recommendations for treatment targets and modalities .
Therefore , this review sought to synthesize the available evidence related to the use of neuropsychological task performance as a tool for informing treatment planning for youth with ADHD .
Review ed studies focused on examinations of associations between task performance and academic , social , and health outcomes , as well as response to treatment .