Development and Psychometric Evaluation of the Impact of Health Information Technology (I-HIT) Scale

Design: Content for a 43-item tool was derived from the literature, and supported theoretically by the Coiera model and by nurse informaticists. Internal consistency reliability analysis using Cronbach’s alpha was conducted on the 43-item scale to initiate the item reduction process. Items with an item total correlation of less than 0.35 were removed, leaving a total of 29 items. Measurements: Item analysis, exploratory principal component analysis and internal consistency reliability using Cronbach’s alpha were used to confirm the 29-item scale. Results: Principal components analysis with Varimax rotation produced a four-factor solution that explained 58.5% of total variance (general advantages, information tools to support information needs, information tools to support communication needs, and workflow implications). Internal consistency of the total scale was 0.95 and ranged from 0.80-0.89 for four subscales. Conclusion: I-HIT demonstrated psychometric adequacy and is recommended to measure the impact of HIT on nursing practice in acute care settings. J Am Med Inform Assoc. 2007;14:507–514. DOI 10.1197/jamia.M2367. by gest on Jauary 8, 2016 .rg/