Characteristics
Psychometrics
Main article reference
Duong, T.V., Pham, K.M., Do, B.N., Kim, G.B., Dam, H.T.B., Le, V.-T.T., Nguyen, T.T.P., Nguyen, H.T., Nguyen, T.T., Le, T.T., Do, H.T.T., & Yang, S.-H. (2020). Digital Healthy Diet Literacy and Self-Perceived Eating Behavior Change during COVID-19 Pandemic among Undergraduate Nursing and Medical Students: A Rapid Online Survey. Int. J. Environ. Res. Public Health, 17(19), 7185. https://doi.org/10.3390/ijerph17197185
Corresponding author
Description
The DDL scale is an expanded concept of health literacy, refers to the ability to access, understand, judge, and apply digital healthy-diet-related information to improve healthy eating behavior and health outcomes (Duong et al., 2020). DDL consists 4 items related to ability to process the information in the domain of digital healthy diet. Participants reported difficulty in performing each task item based on 4-point Likert scales from 1 = very difficult to 2 = fairly difficult, 3 = fairly easy, and 4 = very easy. The DDL index was standardized to a unified metric from 0 to 50 with higher scores representing better DDL using Formula (1): where Index is the specific index calculated, Mean is the mean of all participating items for each individual, 1 is the minimal possible value of the mean (leading to a minimum value of the index of 0), 3 is the range of the mean, and 50 is the chosen maximum value.
Index = (Mean − 1) × (50/3) (1)
Year Measure first Published: 2020
About This Measure
About the Validation of this Measure
