医学
验光服务
心理学
度量(数据仓库)
应用心理学
医学物理学
计算机科学
数据挖掘
作者
Mar Seguí‐Crespo,Julio Cabrero‐García,Ana Belen Morata Crespo,José Verdú Soriano,Elena Ronda
标识
DOI:10.1016/j.jclinepi.2015.01.015
摘要
Abstract
Objectives
To design and validate a questionnaire to measure visual symptoms related to exposure to computers in the workplace. Study Design and Setting
Our computer vision syndrome questionnaire (CVS-Q) was based on a literature review and validated through discussion with experts and performance of a pretest, pilot test, and retest. Content validity was evaluated by occupational health, optometry, and ophthalmology experts. Rasch analysis was used in the psychometric evaluation of the questionnaire. Criterion validity was determined by calculating the sensitivity and specificity, receiver operator characteristic curve, and cutoff point. Test–retest repeatability was tested using the intraclass correlation coefficient (ICC) and concordance by Cohen's kappa (κ). Results
The CVS-Q was developed with wide consensus among experts and was well accepted by the target group. It assesses the frequency and intensity of 16 symptoms using a single rating scale (symptom severity) that fits the Rasch rating scale model well. The questionnaire has sensitivity and specificity over 70% and achieved good test–retest repeatability both for the scores obtained [ICC = 0.802; 95% confidence interval (CI): 0.673, 0.884] and CVS classification (κ = 0.612; 95% CI: 0.384, 0.839). Conclusion
The CVS-Q has acceptable psychometric properties, making it a valid and reliable tool to control the visual health of computer workers, and can potentially be used in clinical trials and outcome research.
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