Scale Overview
The Environmental Risk Assessing Instrument–Occupational Low Back Pain in Nurses (ERAI-N) was developed by Lihui Zhang, Yangyang Liu, Su’e Yuan (2023). It is designed to measure Occupational Low Back Pain Environmental Risk Factors. The scale is intended for use with ICU Nurses and Nurse Administrators.
Scale Structure
This instrument consists of 18 items organized into 5 factors/subscales: Space, Equipment, Belief, Guideline, Atmosphere of safe culture.
| Factor / Subscale |
Items |
N |
| Space |
1,2,3,4 |
4 |
| Equipment |
5,6,7 |
3 |
| Belief |
8,9,10,11,12 |
5 |
| Guideline |
13,14,15 |
3 |
| Atmosphere of safe culture |
16,17,18 |
3 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Very inconsistent, 2 = Not very consistent, 3 = Uncertain, 4 = Fairly consistent, 5 = Very consistent.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Overall Cronbach's alpha of 0.963.
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.