Validation and Psychometric Properties of the German Version of the Adolescent Motor Competence Questionnaire

Abstract

Introduction/Background: In 2016, the Adolescent Motor Competence Questionnaire (AMCQ) was developed in Australia. The AMCQ was developed to assess perceived motor competence in adolescents between the ages of 12 and 18 years. The 26 items represent four factors: participation in physical activity and sports, activities of daily living, public performance, and peer comparison. Aims/Objectives: Currently, no validated German-language self-report screening instrument exists for assessing perceived motor competence among adolescents. This study aimed to validate the German version of the AMCQ (AMCQ-GER). Methods/Approach: The German translation’s factor structure and psychometric properties were analyzed based on a community sample of 635 healthy children and adolescents between 10 and 18 years of age (12.9 ± 2.31 years, 321 boys and 312 girls) and 100 healthy young adults between 19 and 30 years of age (23.0 ± 2.92 years, 49 men and 51 women). The previously validated cutoff score of ≤83 out of 104 was used to group the sample into high and low motor competence. Results: The mean AMCQ-GER score was 84.9 (SD = 8.59), and 38.8% of the participants identified with low motor competence. The principle component analysis revealed clear evidence for a three-factorial structure comprising physical activity and sports, general clumsiness, and activities of daily living (with an explained variance of 29.2%). Reliability for all scales was excellent, with a McDonald’s ϖ of at least .70. The overall conclusion of the Rasch analysis supported the confirmatory factor analysis, although with an overall smaller number of items (18 instead of 26). The AMCQ-GER was positively correlated with age (.26**) and participation in organized club sports (.19**). It was negatively correlated with body mass index (−.23**) and school grade in physical activity (−.40**). Conclusions/Relevance: Our rigorous validation protocol has generated a remarkable reproduction of the AMCQ in German. These results suggest that the language and structure of the questionnaire is appropriate for German-speaking countries.