Validation of the Reliability of the Criteria for Crawling Motion Analysis

Abstract

〔目的〕ハイハイ動作の変化から運動学習過程を検討するために，ハイハイ動作分析基準を開発し，その信頼性を検証した．〔対象と方法〕乳幼児1名の約6ヵ月間のハイハイ動作を記録した動画を資料とし，10名の検査者（経験者群4名，初見群2名，トレーニング群4名）で2回ずつ分析基準を用いたコード化を行い，コードの検査者間および検査者内一致度，さらにバリエーション数についても信頼性を確認した．〔結果〕初見群を除き，コードおよびバリエーション数の一致度ともに十分な信頼性を確認した．また，事前にトレーニングを行うことで信頼性が増すことが示された．〔結語〕開発した手法の客観性が示唆された．[Purpose] We developed criteria for crawling motion analysis, for the purpose of understanding motor learning processes from changes in crawling motion, and investigated their reliability. [Subjects and Methods] Ten examiners (4 with experience, 2 novices, and 4 trainees) used a video recording of the crawling motion during 6-months to code the movements using the analysis criteria on two occasions. The reliability was ascertained using the levels of intra- and inter-examiner agreement, and the variation number. [Results] With the exception of the novices, the levels of agreement of the code and variation number were confirmed to be sufficiently reliable. The results also suggest that prior training increase the reliability. [Conclusion] The results suggest the method we have developed is objective