Motor Skill Performance by Low SES Preschool and Typically Developing Children on the PDMS-2

The purpose of this study was to compare the motor skill performance of preschool children from low socioeconomic (SES) backgrounds to their age matched typically developing peers using the Peabody Developmental Motor Scales-2 (PDMS-2). Sixty-eight children (34 low SES and 34 typically developing; ages 3-5) performed the PDMS-2. Standard scores from each subtest (i.e., stationary, locomotion, object manipulation, grasping, and visual-motor integration) and three quotient scores were calculated for the children identified as low SES and typically developing children. A MANOVA was used to analyze the PDMS-2 standard score and quotient score differences between the children identified as low SES and the typically developing children. All preschool children identified as low SES scored at average or lower on total motor quotient scores. Specifically, 88.2 % of children identified as low SES were classified as average, and 11.8 % of children were in the below average performance category. The MANOVA analysis showed that children identified as low SES scored significantly lower than the typically developing children on the visual-motor integration subtest, F(1,64) = 7.232, p = .009; locomotion subtest, F(1,64) = 11.449, p = .001; and TMQ, F(1,64) = 4.732, p = .033. Children identified as low SES were significantly delayed in both fine and gross motor skill areas when compared to their typically developing age and gender matched peers. Researchers are recommended to provide comprehensive assessments for preschool children and to include motor tasks when designing early intervention programs.