Functional Assessment of Cancer Therapy – General (FACT-G)
Measures health-related quality of life in cancer patients across physical, social, emotional, and functional domains.
Scale Development & Technical Details
Scale Overview
The Functional Assessment of Cancer Therapy – General (FACT-G) was developed by David F. Cella (1993). It is designed to measure Health-Related Quality of Life. The scale is intended for use with Cancer patients.
Scale Structure
This instrument consists of 27 items organized into 4 factors/subscales: Physical Well-being, Social/Family Well-being, Emotional Well-being, Functional Well-being.
| Factor / Subscale | Items | N |
|---|---|---|
| Physical Well-being | 1,2,3,4,5,6,7 | 7 |
| Social/Family Well-being | 8,9,10,11,12,13,14 | 7 |
| Emotional Well-being | 15,16,17,18,19,20 | 6 |
| Functional Well-being | 21,22,23,24,25,26,27 | 7 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 0 = Not at all, 1 = A little bit, 2 = Somewhat, 3 = Quite a bit, 4 = Very much.
The scale includes 12 reverse-scored items to reduce acquiescence bias.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 0 to 108. Interpretation guidelines:
- Total Score Range (Higher scores indicate better quality of life): 0 – 108
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of 0.82-0.90.
Administration
The scale is self-administered and typically takes approximately 10 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.