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This study aimed to examine aspects of validity and reliability of the Test of Gross Motor Development-2 (TGMD-2) in Filipino children with intellectual disability. Content and construct validity were verified, as well as inter-rater and intra-rater reliability. Two paediatric physiotherapists tested 81 children with intellectual disability (mean age = 9.29 ± 2.71 years) on locomotor and object control skills. Analysis of covariance, confirmatory factor analysis and analysis of variance were used to test validity, while Cronbach’s alpha, intra-class correlation coefficients (ICC) and Bland–Altman plots were used to examine reliability. Age was a significant predictor of locomotor and object control scores (P = 0.004). The data fit the hypothesised two-factor model with fit indices as follows: χ2 = 33.525, DF = 34,P = 0.491, χ2/DF = 0.986. As hypothesised, gender was a significant predictor for object control skills (P = 0.038). Participants’ mean scores were significantly below mastery (locomotor,P< 0.001; object control,P< 0.001). Cronbach’s alpha was 0.830 for locomotor and 0.792 for object control components. ICC for locomotor and object control scores ranged from 0.995 to 0.998, suggesting excellent intra-rater and inter-rater reliability, confirmed by Bland–Altman analysis. This study provides evidence of sufficient content and construct validity, internal consistency and rater reliability of TGMD-2 for Filipino children with intellectual disability. [ABSTRACT FROM AUTHOR]

BackgroundChildren with intellectual disability (ID) tend to have difficulties in reaching developmental milestones at predictable rates, including fundamental movement skills (FMS) proficiency. Low FMS proficiency tends to have a negative association with physical activity (PA) engagement. This study examined whether FMS components (locomotor, object control) influence PA levels in children with ID in the Philippines. MethodThe sample consisted of 60 children aged 5–14 years (M = 9.56,SD = 3.23) from special schools. PA was measured using pedometers (daily step count). FMS proficiency was measured using the Test of Gross Motor Development – Second Edition. ResultsParticipants’ overall mean daily step count (M = 7,014.92,SD = 3,124.86) was significantly lower than the global public health standard of 12,000 daily steps. FMS scores were significantly lower than the full score for locomotor (M = 24.80,SD = 8.90,p < .001) and object control skills (M = 20.95,SD = 6.53,p < .001). Significant positive associations were found between FMS components and PA, with object control skills accounting for 26.7% of overall daily step count variance. ConclusionFindings suggest that programs are needed to facilitate proficient FMS and sufficient PA for children with ID in the Philippines. Although object control skills influence PA, further studies are needed to examine other factors. [ABSTRACT FROM PUBLISHER]