Development and psychometric evaluation of the arterial puncture self-efficacy scale

Article

Hernández-Padilla, J., Granero-Molina, J., Marquez-Hernández, V., Suthers, F. and Fernández-Sola, C. 2016. Development and psychometric evaluation of the arterial puncture self-efficacy scale. Nurse Education Today. 40, pp. 45-61. https://doi.org/10.1016/j.nedt.2016.02.008
TypeArticle
TitleDevelopment and psychometric evaluation of the arterial puncture self-efficacy scale
AuthorsHernández-Padilla, J., Granero-Molina, J., Marquez-Hernández, V., Suthers, F. and Fernández-Sola, C.
Abstract

Background
Arterial puncture for arterial blood gases (ABG) analysis can be a risky, painful, difficult-to-perform procedure that is often insufficiently practised and generates stress and discomfort amongst patients and healthcare professionals. Self-efficacy is a key component in the acquisition of procedural skills. Therefore, professionals' self-efficacy in arterial puncture should be measured before attempting the procedure on real patients.
Objective
To develop and psychometrically assess a self-efficacy scale in arterial puncture.
Design
An observational cross-sectional design was used in this study.
Setting
Faculty of Education Sciences, Nursing and Physiotherapy in a higher education institution in the south of Spain.
Participants
A convenience sample of 342 nursing students entered and completed the study. All participants met the following inclusion criteria: (1) to be ≥18 years old, and (2) to be enrolled in a Nursing degree programme during the 2014/2015 academic year. Participants were 74% female (n = 254) and their age ranged from 18 to 50, with a mean age of 21.74 years (SD = 5.14).
Method
The Arterial Puncture Self-Efficacy Scale (APSES) was developed and psychometrically tested. Reliability and content validity were studied. Predictive validity and concurrent validity assessed criterion validity. In addition, principal component analysis and known-group analysis evaluated construct validity.
Results
Principal component analysis revealed the two-subscale structure of the final 22-item version of the Arterial Puncture Self-Efficacy Scale (APSES). A total Cronbach's alpha coefficient of 0.97 showed its high reliability. The APSES' content validity index was excellent (S-CVI/Ave = 0.95). Predictive and concurrent validity analysis demonstrated the good criterion validity of the tool. Supporting the APSES' sensitivity and specificity, known-groups analysis evidenced significant differences (p < 0.001) in self-efficacy levels between groups.
Conclusion
The APSES showed good psychometric properties for measuring self-efficacy in arterial puncture for ABG analysis.

PublisherElsevier
Churchill Livingstone
JournalNurse Education Today
ISSN0260-6917
Publication dates
Print01 May 2016
Publication process dates
Deposited13 Apr 2016
Accepted04 Feb 2016
Output statusPublished
Additional information

Available online 17 February 2016

Digital Object Identifier (DOI)https://doi.org/10.1016/j.nedt.2016.02.008
LanguageEnglish
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