Ecological validity of the German Bruininks-Oseretsky Test of Motor Proficiency – 2nd Edition

•Ecological validity was strongest the more alike assessed skills were to daily tasks.•Bilateral Coordination and Balance were not linked to riding bicycle/scooter or sport.•Upper-Limb Coordination was linked to gross motor rather than fine motor skills.•Ecological validity of assessments should be considered for the diagnosis of DCD.