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Cho, Choi, Kim, Yoo, and Lee: Construct Validity and Reliability of the Korean Version of the Practice Environment Scale of Nursing Work Index for Korean Nurses
Original Article
Journal of Korean Academy of Nursing

Journal of Korean Academy of Nursing 2011; 41(3): 325-332.

Published online: 13 June 2011

DOI: https://doi.org/10.4040/jkan.2011.41.3.325

Construct Validity and Reliability of the Korean Version of the Practice Environment Scale of Nursing Work Index for Korean Nurses

Eunhee Cho1, Mona Choi1, Eun-Young Kim2, Il Young Yoo3, Nam-Ju Lee4

1Assistant Professor and Researcher, Nursing Policy Research Institute, Yonsei University College of Nursing, Seoul, Korea.

2Assistant Professor, Department of Nursing, Dong-A University, Busan, Korea.

3Professor and Researcher, Nursing Policy Institute, Yonsei University College of Nursing, Seoul, Korea.

4Assistant Professor and Researcher, Research Institute of Nursing Science, Seoul National University College of Nursing, Seoul, Korea.

Address reprint requests to: Kim, Eun-Young. Department of Nursing, Dong-A University, 3 Dongdaesin-dong, Seo-gu, Busan 602-714, Korea. Tel: +82-51-240-2785, Fax: +82-51-240-2920, eykim@dau.ac.kr

Received 18 September 2010       Accepted 7 June 2011

© 2011 Korean Society of Nursing Science

Abstract

Purpose

To develop and test the validity and reliability of the Korean version of PES-NWI measuring nursing work environments in hospitals.

Methods

The Korean version of the PES-NWI was developed through forward-backward translation techniques, and revision based on feedback from focus groups. An internal consistency reliability and construct validity using confirmatory factor analysis were conducted using SPSS WIN (16.0) and AMOS (18.0). Survey data were collected from 733 nurses who worked in three acute care hospitals in Seoul, South Korea.

Results

The Korean version of PES-NWI showed reliable internal consistency with a Cronbach's alpha for the total scale of .93. Factor loadings of the 29 items on the five subscales ranged from .28 to .85. The five subscales model was validated by confirmatory factor analysis (RMR<.05, CFI>.9).

Conclusion

The findings of this study demonstrate that the Korean version of PES-NWI has satisfactory construct validity and reliability to measure nursing work environments of hospitals in Korea.

Keywords: Professional practice, Reproducibility of results, Factor analysis, Statistical, Psychometrics

Figures and Tables

Table 1
General Characteristics of Nurses (N=733)
jkan-41-325-i001

*Missing responses excluded; †Others included psychiatric (n=18), nursery (n=17), obstetrics and gynecology (n=14), delivery room (n=27), anesthesiology (n=10), dialysis unit (n=51), rehabilitation (n=12), outpatient (n=7), float pool/multiple units (n=8), and others (n=2).

BSN=bachelor of science in nursing.

Table 2
Model Fit Indices for PES-NWI Subscales from Confirmatory Factor Analysis
jkan-41-325-i002

*NA='not available' indicates the saturated state; PES-NWI=Practice Environment Scale of Nursing Work Index; PES_P=nurse participation in hospital affairs; PES_F=nursing foundations for quality of care; PES_M=nurse manager ability, leadership, and support of nurses; PES_S=staffing and resource adequacy; PES_R=collegial nurse-physician relations; RMR=root mean square residual; GFI=goodness of fit index; AGFI=adjusted goodness of fit index; NFI=normal fit index; CFI=comparative fit index.

Table 3
Summary of Confirmatory Factor Analysis of the PES-NWI
jkan-41-325-i003
Table 4
Model Fitness Test Results
jkan-41-325-i004

RMR=root mean square residual; GFI=goodness of fit index; AGFI=adjusted goodness of fit index; NFI=normal fit index; CFI=comparative fit index.

Table 5
Reliability Coefficients for PES-NWI Subscales
jkan-41-325-i005

PES-NWI=Practice Environment Scale of Nursing Work Index.

Notes

Funding for the study was provided by a 2007 New Faculty Research Seed Money Grant at Yonsei University and a pilot grant from the Center for Nursing Outcomes Research (P30-NR-005043) and Advanced Training in Nursing Outcomes Research (T32-NR-007104) at the Center for Health Outcomes & Policy Research at the University of Pennsylvania.

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