Analysis and Validation of the Polish Fundamental Motor Skills Test (FUS) and Its Reliability and Validity in Chinese Children

Objective To analyse and validate the reliability and validity of the Test Fundamentalnych Umiejętności Ruchowych w Sporcie (FUS) in assessing the Fundamental Movement Skills (FMS) of primary school students in China using the Test of Gross Motor Development-Third Edition (TGMD-3) as a reference Methods A total of 250 students from grades 1 to 5, with an average age of 8.98 ± 1.48 years, were selected from Hele Elementary School in Shang-qiu City, Henan Province, China. Both the FUS and TGMD-3 were administered to evaluate the students' FMS. Results The average FUS score for the primary school students was 11.18 ± 4.69. A Construct validity analysis of variance with age as a factor revealed significant mean differences across grades (p < 0.001). The Concurrent validity coefficient between FUS and TGMD-3 was r = 0.903 (p < 0.001). The Intraclass Correlation Coefficients (ICC) for Test-retest reliability ranged from 0.92 to 0.96. The Internal consistency reliability, measured by Cronbach's alpha, was 0.59. The Inter-rater reliability Kappa values were above 0.75, and the Intra-rater reliability ICC values were greater than 0.92. Conclusion The FUS demonstrates good reliability and validity in assessing FMS among Chinese children and can be considered an effective tool for FMS evaluation in Chinese children.