Lisa Hyde|Allison Boyes|Tiffany?Jane Evans|Lisa Mackenzie|Rob Sanson?Fisher
Three-Factor Structure of the eHealth Literacy Scale Among Magnetic Resonance Imaging and Computed Tomography Outpatients: A Confirmatory Factor Analysis
University of Newcastle Australia|Hunter Medical Research Institute|University of Newcastle Australia|Hunter Medical Research Institute|Hunter Medical Research Institute|Hunter Medical Research Institute|University of Newcastle Australia|Hunter Medical Research Institute|University of Newcastle Australia
electronic health ehealth literacy needed effectively engage webbased health resources 8item ehealth literacy scale eheals commonly used selfreport measure ehealth literacy accumulated evidence suggested eheals unidimensional however recent study sudburyriley colleagues suggested theoreticallyinformed threefactor model fit better onefactor model 3 factors identified awareness 2 items skills 3 items evaluate 3 items important determine whether findings replicated populationsthe aim crosssectional study verify threefactor eheals structure among magnetic resonance imaging mri computed tomography ct medical imaging outpatientsmri ct outpatients recruited consecutively waiting room one major public hospital participants selfcompleted touchscreen computer survey assessing sociodemographic scan internet use characteristics eheals administered internet users threefactor structure tested using structural equation modelingof 405 invited patients 874 354405 interested participating study 757 268354 eligible eligible participants 955 256268 completed eheals items factor loadings 080 094 statistically significant p001 reliability measures acceptable indicator reliability awareness7189 skills7880 evaluate6479 composite reliability awareness89 skills92 evaluate89 variance extracted estimates awareness80 skills79 evaluate72 two three goodnessoffit indices adequate standardized root mean square residual srmr038 comparative fit index cfi944 root mean square error approximation rmsea156 item 3 removed significant correlation item 2 lagrange multiplier lm estimate 10402 p001 high loading 2 factors lm estimate 9111 p001 3 indices resulting 7item model indicated goodness fit 211113 srmr013 cfi999 rmsea011the threefactor eheals structure supported sample mri ct medical imaging outpatients although factorial validation studies needed 3 scale factors may used identify individuals could benefit interventions improve ehealth literacy awareness skill evaluation competencies