4.4 Article

Transactional eHealth Literacy: Developing and Testing a Multi-Dimensional Instrument

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JOURNAL OF HEALTH COMMUNICATION
卷 24, 期 10, 页码 737-748

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TAYLOR & FRANCIS INC
DOI: 10.1080/10810730.2019.1666940

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  1. National Heart, Lung, and Blood Institute of the National Institutes of Health [F32HL143938]

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Theoretically informed measures of eHealth literacy that consider the social affordances of eHealth are limited. This study describes the psychometric testing of a multi-dimensional instrument to measure functional, communicative, critical, and translational eHealth literacies, as informed by the Transactional Model of eHealth Literacy (TMeHL). A 3-phase rating scale construction process was conducted to engage eHealth experts and end-users. In Phase 1, Experts (N =?5) and end-users (N =?25) identified operational behaviors to measure each eHealth literacy dimension. End-users (N =?10) participated in think-aloud interviews to provide feedback on items reviewed and approved by experts. A field test was conducted with a random sample of patients recruited from a university-based research registry (N =?283). Factor analyses and Rasch procedures examined the internal structure of the scores produced by each scale. Pearson?s r correlations provided evidence for external validity of scores. The instrument measures four reliable (??=?.92-.96) and correlated (r=?.44-.64) factors: functional (4 items), communicative (5 items), critical (5 items), and translational (4 items). Researchers and providers can use this new instrument as a theory-driven instrument to measure four eHealth literacies that are fundamental to the social affordances of the eHealth experience.

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