Abstract
Background
Improving the self-efficacy of intensive care unit nurses for delirium care could
help them adapt to the changing situation of delirium patients. Validated measures
of nurses' self-efficacy of delirium care are lacking
Objectives
The objective of this study was to develop a Delirium Care Self-Efficacy Scale for
assessing nurses' confidence about caring for patients in the intensive care unit
and to examine the scale's psychometric properties.
Methods
Draft scale items were generated from a review of relevant literature and face-to-face
interviews with intensive care unit nurses; content validity was conducted with a
panel of five experts in delirium. A group of nurses were recruited by convenience
sampling from intensive care units (N = 299) for item analysis of the questionnaire,
assessment of validity, and reliability of the scale. Nurse participants were recruited
from nine adult critical care units affiliated with a hospital in Taiwan. Data were
collected from August 2020 to July 2021.
Results
Content validity index was 0.98 for the initial 26 items, indicating good validity.
The critical ratio for item discrimination was 14.47–19.29, and item-to-total correlations
ranged from 0.67 to 0.81. Principal component analysis reduced items to 13 and extracted
two factors, confidence in delirium assessment and confidence in delirium management,
which explained 66.82% of the total variance. Cronbach's alpha for internal consistency
was 0.94 with good test–retest reliability (r = 0.92). High scale scores among participants were significantly associated with
age (≥40 years), work experience in an intensive care unit (≥10 years), delirium education,
and willingness to use delirium assessment tools.
Conclusions
The newly developed Delirium Care Self-Efficacy Scale demonstrated acceptable reliability
and validity as a measure of confidence for intensive care nurses caring for and managing
patients with delirium in the intensive care unit.
Keywords
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Article info
Publication history
Published online: September 19, 2022
Accepted:
August 6,
2022
Received in revised form:
July 13,
2022
Received:
February 19,
2022
Publication stage
In Press Corrected ProofIdentification
Copyright
© 2022 Australian College of Critical Care Nurses Ltd. Published by Elsevier Ltd. All rights reserved.
