Citation: Bruinsma, E., van den Hoofdakker, B., Hoekstra, P., de Kuiper, G., & de Bildt, A. (2024). Effects of positive behaviour support delivered by direct staff on challenging behaviours and quality of life of adults with intellectual disabilities: A multicentre cluster-controlled trial. Journal of Applied Research in Intellectual Disabilities, 37(1), e13164. Link to publisher’s article.