Further instrument development (Phase 3 and 4) of a scale to assess perceived fundamental motor skill competence in children. This includes developing an animated format of a pre-existing video-based assessment and establishing face validity (Phase 3). Conducting test-retest and internal reliability testing of the new scale (Phase 4) in preparation for large-scale use. 

References: 

1) https://pubmed.ncbi.nlm.nih.gov/34459028/ 

2) https://pubmed.ncbi.nlm.nih.gov/29910408/