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Multimodal Treatment of Attention Deficit Hyperactivity Disorder (MTA) Study

The NIMH-funded Multimodal Treatment of Attention Deficit Hyperactivity Disorder (MTA) study was a multisite study designed to evaluate the leading treatments for ADHD, including behavior therapy, medications, and the combination of the two. The study's primary results were published in 1999. Follow-up data continues to be published.

Read the MTA Questions and Answers (Revised November 2009).

Press releases and updates

Short-term Intensive Treatment Not Likely to Improve Long-term Outcomes for Children with ADHD (March 2009)

Age-related Decline of ADHD Symptoms Disrupted by Middle School (July 2008)

Improvement Following ADHD Treatment Sustained in Most Children (July 2007)