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Electronic Health Literacy in Swiss-German Parents: Cross-Sectional Study of eHealth Literacy Scale Unidimensionality

Electronic Health Literacy in Swiss-German Parents: Cross-Sectional Study of eHealth Literacy Scale Unidimensionality

In addition to the bifactor model, further IRT understanding based on the internal psychometric structure of the e HEALS was specifically examined in terms of general factor strength (appropriate unidimensional scores) and substantive multidimensionality (item bias). IRTPRO v 4.2 (Scientific Software International, Skokie, IL) was used to run the IRT analyses, and the unidimensional indices were computed using the Bifactor Indices Calculator [32], including Mc Donald´s omega [29].

Sibylle Juvalta, Matthew J Kerry, Rebecca Jaks, Isabel Baumann, Julia Dratva

J Med Internet Res 2020;22(3):e14492