Jennifer Nguy?n|Michael D. Moorhouse|Barbara Curbow|Juliette Christie|Kim Walsh-Childers|Sabrina Islam
Construct Validity of the eHealth Literacy Scale (eHEALS) Among Two Adult Populations: A Rasch Analysis
University of Florida Health|University of Florida|Florida Department of Health|University of Maryland, College Park|University of Florida|Florida Department of Health|University of Florida|University of Florida|Florida Department of Health
background internet become ubiquitous venue information seeking especially health information public health practitioners noticed promise potential internet however little known individuals skills ehealth literacy ehealth literacy scale eheals designed measure perceptions individuals ehealth literacy skills objective objective study examine psychometric validity reliability eheals two adult populations using rasch model methods collegeaged sample internetbased sample amazons mturk recruited complete eheals demographic questions health literacy scale using winsteps spss unidimensionality item fit rating scale item hierarchy person abilityitem match reliability analyzed compared contrasted sample samples found literature results exploratory factor analysis supported unidimensionality samples 90 respondents samples fit model items outright misfitting samples separated three distinct groups conclusions based results eheals reliable consistent measurement tool college sample internetbased sample individuals likely use internet health resource necessary learn know skills versus perceiving critically successfully navigate internet analyses necessary ensure eheals serve standard ehealth literacy measure public health