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Validity and Reliability of the Stoma Self-Efficacy Scale in Patients With Intestinal Stoma: A Descriptive,
Lenka Machálková1, Eva Reiterová1, Karolína Křenková2
1Department of Nursing, Faculty of Health Sciences, Palacký University in Olomouc, Olomouc, Czech Republic.
Aim(S):
The aim was to validate the stoma self-efficacy scale and assess the psychometric properties of the Czech version of the scale in patients with intestinal stoma. Another aim was to assess self-efficacy in patients with intestinal stoma.
Design:
Descriptive, cross-sectional and validation study.
Methods:
Two hundred and ninety patients with intestinal stoma participated in the study during 2023. The original SSES instrument was linguistically validated into Czech. Content validity of the scale, test-retest, intraclass coefficient, Cronbach's alpha, McDonald's ω, construct and convergent validity were assessed for psychometric properties. The study followed STROBE guidelines.
Results:
The stoma self-efficacy scale was adopted into Czech, demonstrating excellent content validity. An intraclass correlation coefficient was calculated to establish test-retest reliability, showing excellent reliability of the Czech version. Cronbach's alpha and McDonald's ω showed high reliability. Factor analysis was applied for construct validity. Exploratory factor analysis was used to extract three factors on the Czech version of the scale: Stoma care self-efficacy, social self-efficacy and burden self-efficacy. The factors accounted for 62.05% of the total variance and showed strong internal consistency. Confirmatory factor analysis was applied separately to the data of respondents with colostomy and respondents with ileostomy. The fit indices were satisfactory for respondents with colostomy after adjustment. The composite reliability coefficient showed acceptable values in each factor.
Conclusion:
The Czech version of the stoma self-efficacy scale has excellent psychometric properties in patients with intestinal stoma. It is a reliable tool for use in patients with intestinal stoma to assess self-efficacy. The scale can also be used by nurses who care for these patients and based on this, meet the individual needs related to patients' self-efficacy.
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