Characteristics
Domains assessed:
Comprehension, Conceptual Knowledge
Specific context:
Nutrition
Validation sample population age:
Adults: 18 to 64 years
Modes of administration in validation study
:
Face-to-face, Paper and pencil
Psychometrics
Number of items:
31
Sample size in validation study:
200
Administration Time (minutes):
60 minutes
Language of validated version:
English
Main article reference
Wang ML, Little TV, Frisard C, Borg A, Lemon SC, et al. (2018) Development and validation of a Weight Literacy Scale in English and Spanish. PLOS ONE 13(10): e0204678. https://doi.org/10.1371/journal.pone.0204678
Link to articleCorresponding author
Milagros Rosal
Description
An instrument to validate Weight Literacy Scale in English and Spanish
Year Measure first Published: 2018
About This Measure
Reliability: Test-retest correlation:
p=0.72
About the Validation of this Measure
Country where validated:
United States of America
Content validity:
The development of the final composition of the Weight Literacy Scale involved a two phase study with three rounds of factor analyses Literacy Scale.
Criterion validity:
Participants’ weight literacy scores were positively associated with education level (β = 3.6; 95% CI: 2.8–4.3); p<0.001) and confidence in ability to fill out medical forms on their own (β = 7.5; 95% CI: 5.8–9.4; p<0.001).
Reliability notes:
Kuder Richardson Coefficient = 0.90. KRC was used because scoring mechanism was binary. The Pearson’s correlation coefficient between the final Weight Literacy Scale scores at baseline and at 2-week follow-up among the subset of Phase 2 participants (N = 71) was 0.72 (95% CI: 0.60–0.82).
