关键词: 运动发育, 家庭支持环境, 应用性评价, 婴儿

Abstract: 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 . Method 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 December 2014 to September 2015.Cronbach′s α index 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 was 0.515.The I-CVI of AHEMD-IS ranged from 0.75 to 1 except the 17th 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. Conclusions 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.

Key words: motor development, affordances of home environment, application assessment, infants