家庭环境中促进运动发育的能力-婴儿量表（AHEMD-IS）的进一步开发与验证

Further Development and Validation of the Affordances in the Home Environment for Motor Development-Infant Scale (AHEMD-IS).

作者信息

Caçola Priscila M, Gabbard Carl, Montebelo Maria I L, Santos Denise C C

机构信息

P.M. Caçola, PhD, Developmental Motor Cognition Lab, Department of Kinesiology, University of Texas at Arlington, 500 W Nedderman Dr, Arlington, TX 76019 (USA).

C. Gabbard, EdD, Child Motor Development Lab, Department of Health and Kinesiology, Texas A&M University, College Station, Texas.

出版信息

Phys Ther. 2015 Jun;95(6):901-23. doi: 10.2522/ptj.20140011. Epub 2014 Dec 18.

DOI:10.2522/ptj.20140011

PMID:25524875

Abstract

BACKGROUND

Affordances in the home environment may play a significant role in infant motor development.

OBJECTIVE

The purpose of this study was to further develop and validate the Affordances in the Home Environment for Motor Development-Infant Scale (AHEMD-IS), an inventory that measures the quantity and quality of motor affordances in the home.

DESIGN

A cross-sectional study was conducted to evaluate criteria for content validity, reliability, internal consistency, floor and ceiling effects, and interpretability of the instrument.

METHODS

A pilot version of the inventory with 5 dimensions was used for expert panel analysis and administered to parents of infants (N=419). Data were analyzed with Cronbach alpha, intraclass correlation coefficients (ICCs), ceiling and floor effects, and item and dimension interpretability analyses for creation of a scoring system with descriptive categories for each dimension and total score.

RESULTS

Average agreement among the expert panel was 95% across all evaluation criteria. Cronbach alpha values with the 41-item scale ranged between .639 and .824 for the separate dimensions, with a total value of .824 (95% confidence interval [95% CI]=.781, .862). The ICC values were .990 for interrater reliability and .949 for intrarater reliability. There was a ceiling effect on 3 questions for the Inside Space dimension and on 3 questions for the Variety of Stimulation dimension. These results demonstrated the need for reduction in total items (from 41 to 35) and the combination of space dimensions. After removal of questions, internal consistency was .766 (95% CI=.729, .800) for total score. Overall assessment categories were created as: less than adequate, moderately adequate, adequate, and excellent.

LIMITATIONS

The inventory does not determine specific use (time, frequency) of affordances in the home, and it does not account for infants' out-of-home activities.

CONCLUSIONS

The AHEMD-IS is a reliable and valid instrument to assess affordances in the home environment that promote infant motor development.

摘要

背景

家庭环境中的可供性可能在婴儿运动发育中发挥重要作用。

目的

本研究的目的是进一步开发并验证家庭环境中促进运动发育的可供性量表（AHEMD-IS），这是一种用于测量家庭中运动可供性的数量和质量的量表。

设计

进行了一项横断面研究，以评估该量表的内容效度、信度、内部一致性、地板效应和天花板效应以及可解释性的标准。

方法

使用包含5个维度的量表试用版进行专家小组分析，并施测于婴儿的父母（N = 419）。使用克朗巴哈系数、组内相关系数（ICC）、天花板效应和地板效应以及项目和维度可解释性分析对数据进行分析，以创建一个具有每个维度和总分描述性类别的评分系统。

结果

在所有评估标准中，专家小组的平均一致性为95%。41个项目量表各维度的克朗巴哈系数值在0.639至0.824之间，总值为0.824（95%置信区间[95%CI]=0.781，0.862）。组间信度的ICC值为0.990，组内信度的ICC值为0.949。内部空间维度的3个问题和刺激多样性维度的3个问题存在天花板效应。这些结果表明需要减少项目总数（从41个减至35个）并合并空间维度。去除问题后，总分的内部一致性为0.766（95%CI = 0.729，0.800）。总体评估类别设定为：不足、中等、充足和优秀。