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Negative / Null Result ReportMedicine· cited by 169

Effects of Group Psychotherapy, Individual Counseling, Methylphenidate, and Placebo in the Treatment of Adult Attention-Deficit/Hyperactivity Disorder

Alexandra Philipsen; Thomas Jans; Erika Graf; Swantje Matthies; Patricia Borel; Michael Colla; Laura Gentschow; Daina Langner · 2015 · JAMA Psychiatry

WASTE classifies this as Negative / Null Result Report · AI classification, approximate

The study found no significant effect — useful as a negative control or null benchmark for your own design.

Abstract (excerpt)

IMPORTANCE: Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder with high prevalence in adulthood. There is a recognized need to assess the efficacy of psychotherapy in adult ADHD. OBJECTIVE: To evaluate the…

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Metadata source: OpenAlex · DOI 10.1001/jamapsychiatry.2015.2146