Dekkers, Tycho J.
Woelk, Mandy
Breider, Simone
Hoekstra, Pieter J.
van den Hoofdakker, Barbara J.
de Bildt, Annelies
Article History
Received: 27 May 2025
Accepted: 4 February 2026
First Online: 20 February 2026
Declarations
:
: Financial interests: Van den Hoofdakker receives royalties as one of the editors of “Sociaal Onhandig” (Van der Veen-Mulders et al., 2010), a Dutch book for parents that was used in the face-to-face behavioral parent training that was investigated in this study. De Bildt receives royalties due to her authorship for the Dutch version of the ADOS, the proceeds of which go fully to Accare Child Study Center in Groningen, The Netherlands. Dekkers and Hoekstra are members of the steering committee of the European ADHD Network EUNETHYDIS, which receives funding from Medice and Takeda to promote educational activities. Non-financial interests: Van den Hoofdakker developed and evaluates several Dutch behavioral training programs for parents, teachers, and staff. All other authors have no competing interests.