中文版婴儿运动发育家庭支持环境量表的信效度分析

Reliability and validity of Affordances in the Home Environment for Motor Development-Infant Scale-Chinese version

目的对婴儿发育家庭环境支持量表(AHEMD-IS)的信效度进行评价,为早期运动环境的筛查和干预提供有效工具。方法本研究采用横断面调查的方法,选择上海市分娩量最大的二、三级妇幼保健院以及江苏省盐城市妇幼保健院。招募2014年12月—2015年9月儿保门诊定期体检的婴儿作为研究对象,年龄范围3~11月龄,共纳入研究对象1 250例。信效度评价使用Cronbach′sα系数来测量内在一致性信度,使用Guttman折半系数测量外在一致性信度,使用条目水平内容效度指数(Item-level Content Validity Index,I-CVI)测量内容效度,使用探索性因素分析测量婴儿家庭环境支持量表的结构效度。结果 3~11月龄婴儿发育家庭环境支持量表中文版总体Cronbach′sα系数为0.836,量表26个条目的折半系数为0.515,条目水平的内容效度指数除了第17条目I-CVI得分为0.625,其他条目得分均在0.75~1之间。采用主成分分析法提取4个公因子,累计贡献率为49.27%,分别命名为"活动空间"、"活动多样性"、"大运动玩具"、"精细运动玩具",与原量表结构符合。结论婴儿发育家庭环境支持量表达到了基本心理测量学标准。可在研究地区婴儿中使用,作为针对婴儿运动发育环境筛查的有效工具。

Objective To assess the reliability and validity of the Affordances in the Home Environment for Motor Development-Infant Scale-Chinese version（AHEMD-IS）,so as to provide a valid tool for screening of early motor development environment. Methods A cross-sectional survey was conducted in a tertiary and a secondary maternity and children＇s health care hospital in Shanghai and a maternity and children＇s health care hospital in Yancheng city.Totally 1 250 3 to 11-month-old infants who visited children＇s health care clinics regularly for physical examination were recruited from December2014 to September 2015.Cronbach＇sαindex for each item was used to determine internal consistency.Guttman half-split coefficient was used to determine external consistency.The content validity was determined by the item-level content validity index（I-CVI）.Exploratory factor analysis（EFA）was used to examine the factorial validity of the AHEMD-IS Scale. Results The Cronbach＇s alpha value of all items together was 0.836.The Guttman half-split coefficient of AHEMD-IS was0.515.The I-CVI of AHEMD-IS ranged from 0.75 to 1 except the 17 th item.Principal component analysis was conducted to extract four common factors with cumulative contribution rate of 49.27%.The four common factors were named as＂activity space＂,＂variety of stimulation＂,＂gross-motor toys＂and＂fine-motor toys＂separately,which were consistent with the construction of the original scale. Conclusion Chinese version of AHEMD-IS has good psychometric reliability and validity,and it could be used as a valid tool for motor development in Chinese infants.