Samantha R. Paige|Janice L. Krieger|Michael Stellefson|Julia M. Alber
eHealth literacy in chronic disease patients: An item response theory analysis of the eHealth literacy scale (eHEALS)
Florida Department of Health|University of Florida|University of Florida|Florida Department of Health|University of Florida|University of Pennsylvania
chronic disease patients affected low computer health literacy negatively affects ability benefit access online health informationto estimate reliability confirm model specifications ehealth literacy scale eheals scores among chronic disease patients using classical test ctt item response theory techniquesa stratified sample blackafrican american n341 caucasian n343 adults chronic disease completed online survey including eheals item discrimination explored using bivariate correlations cronbachs alpha internal consistency categorical confirmatory factor analysis tested onefactor structure eheals scores item characteristic curves infitoutfit statistics omega coefficient item reliability separation estimates computeda 1factor structure eheals confirmed statistically significant standardized item loadings acceptable model fit indices cfitli090 70 variance explained model item response categories increased higher theta levels evidence acceptable reliability 094 item reliability89 item separation854eheals scores valid reliable measure selfreported ehealth literacy among internetusing chronic disease patientsproviders use eheals help identify patients ehealth literacy skills