Validity and reliability of the Simple Motor Competence-check for Kids (SMC-Kids).

Objectives: To examine the validity and reliability of the Simple Motor Competence-check for Kids (SMC-Kids), which was developed to assess motor development in preschool children.

Design: A cross-sectional and repeated-measures design.

Methods: To assess validity, 71 children aged 4-6 years completed the Test of Gross Motor Development-3 (TGMD-3) and SMC-Kids (10 m shuttle run and paper ball throw).