Journal article
Authors list: Wunderlich, Maximilian Markus; Krampe, Henning; Fuest, Kristina; Leicht, Dominik; Probst, Moriz Benedikt; Runge, Julian; Schmid, Sebastian; Spies, Claudia; Weiss, Bjoern; Balzer, Felix; Poncette, Akira-Sebastian
Publication year: 2024
Journal: JMIR Human Factors
Volume number: 11
ISSN: 2292-9495
Open access status: Gold
DOI Link: https://doi.org/10.2196/57658
Publisher: JMIR Publications
Abstract:
Background: The Charit & eacute; Alarm Fatigue Questionnaire (CAFQa) is a 9-item questionnaire that aims to standardize how alarm fatigue in nurses and physicians is measured. We previously hypothesized that it has 2 correlated scales, one on the psychosomatic effects of alarm fatigue and the other on staff's coping strategies in working with alarms. Objective: We aimed to validate the hypothesized structure of the CAFQa and thus underpin the instrument's construct validity. Methods: We conducted 2 independent studies with nurses and physicians from intensive care units in Germany (study 1: n=265; study 2: n=1212). Responses to the questionnaire were analyzed using confirmatory factor analysis with the unweighted least-squares algorithm based on polychoric covariances. Convergent validity was assessed by participants' estimation of their own alarm fatigue and exposure to false alarms as a percentage. Results: In both studies, the chi(2) test reached statistical significance (study 1: chi(2)(26)=44.9; P=.01; study 2: chi(2)(26)=92.4; P<.001). Other fit indices suggested a good model fit (in both studies: root mean square error of approximation <0.05, standardized root mean squared residual <0.08, relative noncentrality index >0.95, Tucker-Lewis index >0.95, and comparative fit index >0.995). Participants' mean scores correlated moderately with self-reported alarm fatigue (study 1: r=0.45; study 2: r=0.53) and weakly with self-perceived exposure to false alarms (study 1: r=0.3; study 2: r=0.33). Conclusions: The questionnaire measures the construct of alarm fatigue as proposed in our previous study. Researchers and clinicians can rely on the CAFQa to measure the alarm fatigue of nurses and physicians. Trial Registration: ClinicalTrials.gov NCT04994600; https://www.clinicaltrials.gov/study/NCT04994600
Citation Styles
Harvard Citation style: Wunderlich, M., Krampe, H., Fuest, K., Leicht, D., Probst, M., Runge, J., et al. (2024) Evaluating the Construct Validity of the Charite Alarm Fatigue Questionnaire using Confirmatory Factor Analysis, JMIR Human Factors, 11, Article e57658. https://doi.org/10.2196/57658
APA Citation style: Wunderlich, M., Krampe, H., Fuest, K., Leicht, D., Probst, M., Runge, J., Schmid, S., Spies, C., Weiss, B., Balzer, F., & Poncette, A. (2024). Evaluating the Construct Validity of the Charite Alarm Fatigue Questionnaire using Confirmatory Factor Analysis. JMIR Human Factors. 11, Article e57658. https://doi.org/10.2196/57658
Keywords
alarm; alarm fatigue; alarm management; alarms; alarm system; alarm system quality; CARE; clinical alarms; factor analysis; ICU; intensive; Intensive care unit; medical devices; patient monitoring; patient safety; questionnaires; VALIDITY; warning
