CONCLUSIONS: TASH is not effective in reducing blinded-clinician-rated ADHD symptoms in children with mild-to-moderate ADHD. Based on the changes within the response groups during Step 2, hypotheses are generated for adaptive treatment after TASH. Trial registration German Clinical Trials Register (DRKS): DRKS0000897; URL: https://drks.de/search/de/trial/DRKS00008973/details ; registered on December 18th 2015.
