CONTENT VALIDITY, RELIABILITY AND CONSTRUCT VALIDITY OF A CHECKLIST FOR DIVE ROLL EVALUATION

ABSTRACT The objective of this study was to verify the content validity, reliability and construct validity of a checklist for dive roll evaluation. As for content validity, 4 experts in the Artistic Gymnastics field evaluated the checklist using the Delphi technique. Results showed good content validity indexes for the evaluation questions (CVI>0.80). About reliability, 6 raters analyzed 20 dive roll videos of 10 children, using the checklist. Results showed intra-rater ((ICC>0.80) and inter-rater agreement (ICC>0.90). Finally, concerning construct validity, 156 skill videos were analyzed using the checklist. Cronbach’s alpha and Exploratory Factor Analysis with Varimax rotation were applied, with the latter indicating good internal consistency (α=0.76) and the existence of three factors that explain the checklist. Thus, it is concluded that the checklist is valid and reliable to evaluate the proposed motor skill.摘要 本研究旨在验证一款用于侧翻滚动作（dive roll）评定的核查清单（checklist）的内容效度（content validity）、信度（reliability）与结构效度（construct validity）。在内容效度验证环节，本研究邀请4名竞技体操（Artistic Gymnastics）领域专家采用德尔菲法（Delphi technique）对该核查清单进行评定，结果显示各评定条目均具备良好的内容效度指数（content validity index, CVI>0.80）。关于信度检验，6名评定者（rater）借助该核查清单，对10名儿童完成的20段侧翻滚动作视频进行分析，结果显示评定者内部一致性（intra-rater，组内相关系数（intraclass correlation coefficient, ICC）>0.80）与评定者间一致性（inter-rater agreement，ICC>0.90）均表现优异。最后针对结构效度，本研究借助该核查清单对156段技能动作视频开展分析，采用克朗巴哈α系数（Cronbach’s alpha）与配以方差极大旋转（Varimax rotation）的探索性因素分析（Exploratory Factor Analysis）进行检验；结果表明，该核查清单具备良好的内部一致性信度（α=0.76），且可提取出3个因子以完整解释量表结构。综上，本研究认为该核查清单具备可靠的效度与信度，可用于该研究涉及的运动技能评定工作。