Concurrent validity of TGMD-2 and TGMD-3 in children with Down syndrome

Abstract

The purpose of this study was to test the concurrent validity of the Test of Gross Motor Development-3 (TGMD-3) in comparison to the Test of Gross Motor Development-2 (TGMD-2) in children with Down syndrome. Motor skills of 13 children (7 with Down syndrome: 3 female, 4 male; 6 typically developing: 2 female, 4 males) were compared using the TGMD-2 and TGMD-3. Children ranged in chronological age from three to seven years (4.97 +- 1.24). Children with Down syndrome were recruited from a comprehensive early childhood program and typically developing children were recruited from a community preschool. There were no significant differences between the TGMD-2 and TGMD-3 in either locomotor (p = 0.791) or object control (p = 0.761) skills. Results from this study support the validity of the TGMD-3 in comparison to the TGMD-2.