Validity and Reliability of an Expanded Vegetable Questionnaire Among Elementary School Children.

ABSTRACT:

Background

The purpose of this study was to expand the School Physical Activity and Nutrition questionnaire to include a greater variety of vegetables and to evaluate the relative validity and reliability of these revised items.

Objectives

This study utilized 2 convenience samples of third to fifth graders for an analysis: validity (n = 70) and reliability (n = 76). Validity was assessed by comparing questionnaire items with vegetable intake reported from a 24-hour dietary recall covering the same reference period. Reliability estimates were assessed via same-day test-retest.

Results

Agreement correlations ranged from 0.35 to 0.71. Kappa statistics varied from 0.16 to 0.66. Percentage agreements ranged from 57% to 87%. Test-retest Spearman coefficients w

SUBMITTER: Landry MJ 

PROVIDER: S-EPMC6686082 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature