The impact of computer self-efficacy, computer anxiety, and perceived usability and acceptability on the efficacy of a decision support tool for colorectal cancer screening

Katrina Lindblom, Tess Gregory, Carlene Wilson, Ingrid Flight, Ian Zajac

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    Objective: This study investigated the efficacy of an internet-based personalized decision support (PDS) tool designed to aid in the decision to screen for colorectal cancer (CRC) using a fecal occult blood test. We tested whether the efficacy of the tool in influencing attitudes to screening was mediated by perceived usability and acceptability, and considered the role of computer self-efficacy and computer anxiety in these relationships. Methods: Eighty-one participants aged 50-76 years worked through the on-line PDS tool and completed questionnaires on computer self-efficacy, computer anxiety, attitudes to and beliefs about CRC screening before and after exposure to the PDS, and perceived usability and acceptability of the tool. Results: Repeated measures ANOVA found that PDS exposure led to a significant increase in knowledge about CRC and screening, and more positive attitudes to CRC screening as measured by factors from the Preventive Health Model. Perceived usability and acceptability of the PDS mediated changes in attitudes toward CRC screening (but not CRC knowledge), and computer selfefficacy and computer anxiety were significant predictors of individuals' perceptions of the tool. Conclusion: Interventions designed to decrease computer anxiety, such as computer courses and internet training, may improve the acceptability of new health information technologies including internet-based decision support tools, increasing their impact on behavior change.

    Original languageEnglish
    Pages (from-to)407-412
    Number of pages6
    JournalJournal of the American Medical Informatics Association
    Volume19
    Issue number3
    DOIs
    Publication statusPublished - May 2012

    Fingerprint Dive into the research topics of 'The impact of computer self-efficacy, computer anxiety, and perceived usability and acceptability on the efficacy of a decision support tool for colorectal cancer screening'. Together they form a unique fingerprint.

  • Cite this