- 作者：Jennifer ; Falbe MPH ; Erica L. ; Kenney MPH ; Kathryn E. ; Henderson PhD ; ; ; kathryn.e.henderson@yale.edu ; Marlene B. ; Schwartz PhD[Author vitae]
- 刊名：Journal of the American Dietetic Association
- 出版年：2011
- 出版时间：December 2011
- 年：2011
- 卷：111
- 期：12
- 页码：1852-1860
- 全文大小：486 K
lass=""h4"">Background
There is a growing interest in studying the influence of child-care center policies on the health of preschool-aged children.lass=""h4"">Objective
To develop a reliable and valid instrument to quantitatively evaluate the quality of written nutrition and physical activity policies at child-care centers.
lass=""h4"">Design
Reliability and validation study. A 65-item measure was created to evaluate five areas of child-care center policies: nutrition education, nutrition standards for foods and beverages, promoting healthy eating in the child-care setting, physical activity, and communication and evaluation. The total scale and each subscale were scored on comprehensiveness and strength.
lass=""h4"">Setting
Analyses were conducted on 94 independent policies from Connecticut child-care centers participating in the Child and Adult Care Food Program.
lass=""h4"">Statistical analyses performed
Intraclass correlation coefficient was calculated to measure inter-rater reliability, and Cronbach's ¦Á was used to estimate internal consistency. To test construct validity, lns="""">t tests were used to assess differences in scores between Head Start and non¨CHead Start centers and between National Association for the Education of Young Children¨Caccredited and nonaccredited centers.
lass=""h4"">Results
Inter-rater reliability was high for total comprehensiveness and strength scores (intraclass correlation coefficient=0.98 and 0.94, respectively) and subscale scores (intraclass correlation coefficient=0.84 to 0.99). Subscales were adequately internally reliable (Cronbach's ¦Á=.53 to .83). Comprehensiveness and strength scores were higher for Head Start centers than non¨CHead Start centers across most domains and higher for National Association for the Education of Young Children¨Caccredited centers than nonaccredited centers across some but not all domains, providing evidence of construct validity.
lass=""h4"">Conclusions
This instrument provides a standardized method to analyze and compare the comprehensiveness and strength of written nutrition and physical activity policies in child-care centers.