Food label nutrition literacy: tool development and assessment
Sullivan, A.D. | Gottschall-Pass, K.T.
A study was undertaken to develop a reliable and valid tool for assessing the ability of adults to use food labels to find nutrition information; to interpret information for differences between two similar products, and to problem-solve using fat, salt, sugar, and fibre information. In Phase 1, an interview schedule was developed, items were validated for content by logical analysis, and the procedure was pretested before pilot testing with a convenience sample of 49 seniors. The 23-item instrument was found to have acceptable internal consistency reliability. In Phase 2, the schedule was converted to a self-administered questionnaire and tested with 66 adult clients of an urban clinic program. The Cronbach's alpha for the entire instrument was 0.86. Mean scores on each of the three subtests differed with age and education (P<0.05) but not gender, shopping frequency, or buying practise. Significantly lower scores were obtained by the oldest group and by the least educated group. Content ideas for nutrition label programs were revealed.Show more [+] Less [-]