title: Assessing the validity and reliability of a questionnaire on dietary fibre-related knowledge in a Turkish student population.
abstract: This study aimed to validate a questionnaire on dietary fibre (DF)-related knowledge in a Turkish student population. Participants (n=360) were either undergraduate students who have taken a nutrition course for 14 weeks (n=174) or those in another group who have not taken such a nutrition course (n=186). Test-retest reliability, internal reliability, and construct validity of the questionnaire were determined. Overall internal reliability (Cronbach's alpha=0.90) and test-retest reliability (0.90) were high. Significant differences (p<0.001) between the scores of the two groups of students indicated that the questionnaire had satisfactory construct validity. It was found that one-fifth of the students were unsure of the correct answer for any item, and 52.5% of them were not aware that DF had to be consumed on a daily basis. Only 36.4 to 44.2% of the students were able to correctly identify the food sources of DF.
authors.affiliation: Department of Nutrition and Dietetics, Yeditepe University.
authors.forename: Melike S
authors.initials: MS
authors.lastname: Deniz
authors.affiliation: School of Applied Sciences, Ozyegin University, Turkey.
authors.forename: Ayten A
authors.initials: AA
authors.lastname: Alsaffar
mesh_terms: D000293:Adolescent; D000328:Adult; D004043:Dietary Fiber; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D013334:Students / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires / Q000592:standards*; D014421:Turkey; D055815:Young Adult