Reliability and Validity of a Questionnaire to Measure Consumer Knowledge Regarding Safe Practices to Prevent Microbiological Contamination in Restaurants
2013
Uggioni, Paula Lazzarin | Salay, Elisabete
The objective of this study was to develop a validated and reliable questionnaire to measure consumer knowledge regarding safe practices to prevent microbiological contamination in restaurants and commercial kitchens.Non-probabilistic samples of individuals were interviewed in the city of Campinas, Brazil. Questionnaire items were elaborated and reviewed. Content and construct validity, item analysis, test-retest, and internal consistency were developed.The questionnaire content validity index was 96%. The final instrument presented 23 items, a satisfactory Kuder-Richardson formula 20 of 0.66, construct validity (P < .001), and reproducibility (r = 0.77).The developed questionnaire can be used to support consumer education action.
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