Abstract:Objective To develop the eye health related behaviors questionnaire for school age children and to evaluate its reliability and validity.Methods The initial questionnaire was formulated by literature review,preliminary-work outcomes and expert consultation.Totally 288 students in 4-5 grades from a elementary school in Wenzhou were selected.Two-independent samples t-test,pearson correlation coefficient analysis,test of internal consistency and factor analysis were conducted to examine the reliability and validity.Results Eye health related behaviors questionnaire for school age children was consisted of 28 items and 3 dimensions.Exploratory factor analysis suggested that 7 factors accounted for 63.76% of the accumulated variances.The questionnaire-level content validity index was 0.89.The Cronbach's α coefficient was 0.82,and the spilt-half reliability coefficient was 0.844.The test-retest reliability coefficient was 0.682.Conclusion Eye health related behaviors questionnaire for school age children has good reliability and validity,which could be applied to measure children's eye health related behaviors.
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