Matthias Marsall|Gerrit Engelmann|Eva?Maria Skoda|Martin Teufel|Alexander Bäuerle
Measuring Electronic Health Literacy: Development, Validation, and Test of Measurement Invariance of a Revised German Version of the eHealth Literacy Scale
University Hospital Bonn|University of Duisburg-Essen|University of Duisburg-Essen|University of Duisburg-Essen|University of Duisburg-Essen|University of Duisburg-Essen
world wide web become essential source health information nevertheless amount quality information provided may lead information overload therefore people need certain skills search identify evaluate information internet context health information competencies summarized construct ehealth literacy previous research highlighted relevance ehealth literacy terms healthrelated outcomes however existing instrument assessing ehealth literacy german language reveals methodological limitations regarding test development validation development validation revised scale important construct highly relevantthe objective study development validation revised german ehealth literacy scale particular study aimed focus high methodological psychometric standards provide valid reliable instrument measuring ehealth literacy german languagetwo internationally validated instruments merged cover wide scope construct ehealth literacy create revised ehealth literacy scale translation german language followed scientific guidelines recommendations ensure content validity data germanspeaking people n470 collected convenience sample october november 2020 validation performed factor analyses correlations performed examine convergent discriminant criterion validity additionally analyses measurement invariance gender age educational level conductedanalyses revealed 2factorial model ehealth literacy itemreduction 2 factors information seeking information appraisal measured 8 items reaching acceptabletogood model fits comparative fit index cfi 0942 tucker lewis index tli 0915 root mean square error approximation rmsea 0127 standardized root mean square residual srmr 0055 convergent validity comprehensively confirmed significant correlations information seeking information appraisal health literacy internet confidence internet anxiety discriminant criterion validity examined correlation analyses various scales could partly confirmed scalar level measurement invariance gender cfi 0932 tli 0923 rmsea 0122 srmr 0068 educational level cfi 0937 tli 0934 rmsea 0112 srmr 0063 confirmed measurement invariance age rejectedfollowing scientific guidelines translation test validation developed revised german ehealth literacy scale greheals factor analyses confirmed acceptabletogood model fit construct validation terms convergent discriminant criterion validity could mainly confirmed findings provide evidence measurement invariance instrument regarding gender educational level newly revised greheals questionnaire represents valid instrument measure important healthrelated construct ehealth literacy