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The Test of Gross Motor Development (TGMD) measures fundamental motor skills competency and is frequently used for eligibility determination of adapted physical education services in children with disabilities. The purpose of this study was to determine if the TGMD-3 is clinically sensitive to detect deficits in the fundamental motor skills of children with disabilities (i.e., intellectual disability, autism spectrum disorder, attention deficit hyperactivity disorder, language and articulation disorders). Eighty-five children with disabilities and 85 matched controls (i.e., typically developing, individually matched on age, sex, ethnicity, and race) completed the TGMD-3. Mann–Whitney U tests identified significant differences in the total TGMD-3 scores for children with intellectual disability (p < .001), autism spectrum disorder (p < .001), and attention deficit hyperactivity disorder (p = .032). No differences were identified for children with language and articulation disorders. Comparisons of subscales (i.e., locomotor and ball skills) differed across disability groups. This study provides evidence that the TGMD-3 is clinically sensitive to identify deficits in fundamental motor skills competency.

The Test of Gross Motor Development is among the most commonly used measures of gross motor competency in children. An important attribute of any developmental assessment is its sensitivity to detect change. The purpose of this study was to examine the instructional sensitivity of the Test of Gross Motor Development—third edition (TGMD-3) performance criteria to changes in performance for 48 children (age 4–7 years) with and without Down syndrome following 10 weeks of physical education. Paired t tests identified significant improvements for all children on locomotor (p < .01) and ball skills (p < .01). These significant differences were associated with moderate to large effect sizes. SEM was low relative to the maximum raw score for each subtest, indicating high confidence in the scores. These findings provide evidence that the TGMD-3 is sensitive to change in performance for children with and without Down syndrome.

The Test of Gross Motor Development-3 is one of the most popular assessment tools in physical education and physical activity settings. It is a valid assessment originally designed to administer in-person, but the virtual administration of the assessment has yet to be deemed feasible. Thus, the purpose of this study was to explore the trial feasibility of virtual data collection using the Test of Gross Motor Development-3 to assess the fundamental motor skills of children with autism spectrum disorder. Most specifically, we report on the design and feasibility of the online assessment process. A total of 22 families of children with autism spectrum disorder participated in the online data collection.