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Updated: Jun 16, 2025

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Development of Safe Blood Transfusion Self-Efficacy Scale for nurses: Validity and reliability study
Gülsüm Dülger1, Gülten Karahan Okuroglu2
1Haydarpaşa Numune Training and Research Hospital, and is a master student in Marmara University Institute of Health Sciences, Nursing Department, Turkey.
Aim:
The aim of the study is to develop a scale to measure nurses' self-efficacy levels regarding safe blood transfusion practice.
Methods:
This study, applied in methodological design, was conducted in a public university hospital in Istanbul between March-April 2021. The sample included 372 nurses. A draft form consisting of 75 items was prepared. Content validity, construct validity, distinctiveness, internal consistency reliability, two-half test reliability, test-retest, and item analysis methods were used to determine the psychometric properties of the scale.
Results:
The exploratory factor analysis showed that the scale had a four-factor structure that explained 71.36 % of the total variance. The factor loads of 49 items were found to vary between 0.50 and 0.92. The item-total correlations were found to be between 0.55 and 0.92. The Cronbach's alpha value for the whole scale was 0.96.
Conclusion:
The results of the analysis show the items constituting Safe Blood and Blood Products Transfusion Self-Efficacy Scale have validity and reliability criteria that can measure the nurses' self-efficacy levels regarding safe blood transfusion practice.
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