Blood Donation Worry Scale – BDWS
Measures individuals' concerns, cognitive processes, and willingness to donate blood, particularly in the context of the COVID-19 pandemic.
Scale Development & Technical Details
Scale Overview
The Blood Donation Worry Scale – BDWS was developed by Qiuyue Hu, Wei Hu, Lingling Pan, Wenjuan Han, Yue Zheng (2023). It is designed to measure Blood donation worry and anxiety. The scale is intended for use with Adults (18-60 years).
Scale Structure
This instrument consists of 14 items organized into 5 factors/subscales: Attitude, Negative outcome expectation, Subjective norm, Perceived behavior control, Blood donation anxiety.
| Factor / Subscale | Items | N |
|---|---|---|
| Attitude | 1,10 | 2 |
| Negative outcome expectation | 2,4,5 | 3 |
| Subjective norm | 6,7,8 | 3 |
| Perceived behavior control | 9,12,13 | 3 |
| Blood donation anxiety | 3,11,14 | 3 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Completely disagree, 2 = Disagree, 3 = Neutral/Don't know, 4 = Agree, 5 = Completely agree.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 14 to 70. Interpretation guidelines:
- Low Worry: 14 – 32
- Moderate Worry: 33 – 51
- High Worry: 52 – 70
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Cronbach's alpha: 0.911, Guttman split-half: 0.879.
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.