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Published on: June 30, 2011
Development and testing of a scale for nurses' knowledge, attitudes and practices regarding insulin injection-induced
Qin Zhang1, Xinyu Li1, Min Chen2
1Department of Day Surgery Ward, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
Objective:
This study aimed to develop a scale for nurses' knowledge, attitudes and practices regarding the prevention and treatment of subcutaneous lipohypertrophy associated with insulin injections and evaluate its reliability and validity.
Design:
A Delphi research and cross-sectional survey.
Setting:
Medical, education and nursing experts from seven different regions conducted Delphi consultation by E-mail or Wechat, whereas clinical nurses from primary, secondary and tertiary general hospitals in different regions of Sichuan Province were conveniently selected for the questionnaire survey.
Participants:
A total of 16 female experts aged 35-58 years participated in the Delphi expert consultation process; 812 clinical nurses participated in the questionnaire survey.
Outcome Measure:
Content validity, internal consistency reliability and construct validity of the scale.
Results:
The scale comprises 3 dimensions and 36 items, with a content validity index of 0.99, a Cronbach's α coefficient of 0.93, a split-half reliability of 0.87 and a test-retest reliability of 0.93. Exploratory factor analysis revealed a cumulative variance contribution rate of 53.38%, whereas confirmatory factor analysis indicated a χ2 degree of freedom 2 ratios of 2.65, a goodness-of-fit index of 0.86, a root mean square error of approximation of 0.06, a root mean square error of 0.04 and a comparative fit index of 0.90.
Conclusion:
The developed scale demonstrated strong reliability and validity, enabling the assessment of nurses' knowledge, attitudes and practices regarding the prevention and treatment of lipohypertrophy associated with insulin injections.
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