DSpace Repository

Assessing patient attitudes to computerized screening in primary care: psychometric properties of the computerized lifestyle assessment scale

Assessing patient attitudes to computerized screening in primary care: psychometric properties of the computerized lifestyle assessment scale

Show full item record

Title: Assessing patient attitudes to computerized screening in primary care: psychometric properties of the computerized lifestyle assessment scale
Author: Ahmad, F
Hogg-Johnson, S
Skinner, HA
Abstract: Background: Computer-based health-risk assessments are electronic surveys which can be completed by patients privately, for example during their waiting time in a clinic, generating a risk report for the clinician and a recommendation sheet for the patient at the point of care. Despite increasing popularity of such computer-based health-risk assessments, patient attitudes toward such tools are rarely evaluated by reliable and valid scales. The lack of psychometric appraisal of appropriate scales is an obstacle to advancing the field. Objective: This study evaluated the psychometric properties of a 14-item Computerized Lifestyle Assessment Scale (CLAS). Methods: Out of 212 female patients receiving the study information at a family practice clinic, 202 completed a paper questionnaire, for a response rate of 97.6%. After 2 weeks, 52 patients completed the scale a second time. Results: Principal component analysis revealed that CLAS is a multidimensional scale consisting of four subscales (factors): (1) Benefits: patient-perceived benefits toward the quality of medical consultation and means of achieving them, (2) Privacy-Barrier: concerns about information privacy, (3) Interaction-Barrier: concerns about potential interference in their interaction with the physician, and (4) Interest: patient interest in computer-assisted health assessments. Each subscale had good internal consistency reliability ranging from .50 (2-item scale) to .85 (6-item scale). The study also provided evidence of scale stability over time with intraclass correlation coefficients of .91, .82, .86, and .67 for the four subscales, respectively. Construct validity was supported by concurrent hypotheses testing. Conclusions: The CLAS is a promising approach for evaluating patients’ attitudes toward computer-based health-risk assessments.
Sponsor: The study contributed to doctoral and fellowship training of Farah Ahmad, funded by the Canadian Institutes of Health Research(No. 17744), the Institute of Gender and Health, and Ontario Women’s Health Council. The authors wish to thank Wendy Levinson, thesis/fellowship supervisor, and Donna E. Stewart, thesis advisor, for their conceptual contributions. All in-kind support provided by the Centre for Research on Inner City Health, The Keenan Research Centre in the Li Ka Shing Knowledge Institute of St. Michael’s Hospital, is much appreciated.
Subject: Computers
Scale
Psychometric
Screening
Risk assessment
Family practice
Type: Article
Rights: "This work is licensed under the Creative Commons Attribution License CC-BY 2.0." Attribution 2.5 Canada
https://doi.org/10.2196/jmir.955
http://creativecommons.org/licenses/by/2.5/ca/
URI: http://hdl.handle.net/10315/31630
Published: Journal of Medical Internet Research
Citation: Ahmad F, Hogg-Johnson S & Skinner HA. Assessing patient attitudes to computerized screening in primary care: psychometric properties of the computerized lifestyle assessment scale. Journal of Medical Internet Research 2008; 10(2):e11.
Date: 2008-04-18

Files in this item



The following license files are associated with this item:

This item appears in the following Collection(s)

"This work is licensed under the Creative Commons Attribution License CC-BY 2.0." Except where otherwise noted, this item's license is described as "This work is licensed under the Creative Commons Attribution License CC-BY 2.0."