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Test-retest reliability and construct validity of Toddler NutriSTEP (registered trademark)

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Title: Test-retest reliability and construct validity of Toddler NutriSTEP (registered trademark)
Author: Whyte, Kylie
Department: Department of Family Relations and Applied Nutrition
Program: Family Relations and Applied Nutrition
Advisor: Randall Simpson, Janis
Abstract: This research represents phase C in the development of Toddler NutriSTEP® (Nutrition Screening Tool for Every Preschooler). NutriSTEP® is a valid and reliable screening tool designed to assess nutritional risk in preschoolers (3-5 years). A draft toddler (18-35 months) version of NutriSTEP® has recently been developed because of an expressed need. Convenience samples of caregivers were recruited across Ontario to assess the test-retest reliability and construct validity of the tool. Test-retest reliability was assessed based on total score and attribute scores using paired sample t-tests and intraclass correlation coefficients; individual questions were assessed using Wilcoxcon signed rank tests and kappa statistics. Construct validity was assessed through comparison of high-risk groups to Toddler NutriSTEP® scores, as well as through exploratory and confirmatory factor analyses. Toddler NutriSTEP® was found to be test-retest reliable and construct valid, and therefore may be used to assess nutritional risk in Canadian toddlers.
URI: http://hdl.handle.net/10214/3591
Date: 2012-05
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