Objective: This study established the validity and reliability of the Healthy Families Survey, a 45-item survey measuring nutrition and physical activity behaviors among children and parents enrolled in the Maryland Supplemental Nutrition Assistance Program-Education.
Methods: Analysis included 1,376 pretest surveys. A factor analysis was conducted to establish construct validity, item analyses were conducted to determine item relevance for the target population, and Cronbach α was established to assess internal reliability.
Results: The factor analysis extracted 9 factors, with 91% of variables loading appropriately (>+0.30 loading) onto factors. Item analyses identified 6 variables with low (<0.20) or high (>0.80) mean values at baseline. Seven of the 9 subscales had Cronbach α ≥ .60.
Conclusions And Implications: The Healthy Families Survey demonstrated both strong construct validity and internal reliability and can be used by Supplemental Nutrition Assistance Program-Education agencies to assess child and parent nutrition and physical activity behaviors.
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