Basic Need Satisfaction in General Scale – BNSG-S
Measures the degree to which an individual's basic psychological needs for autonomy, competence, and relatedness are satisfied in their general life.
Scale Development & Technical Details
Scale Overview
The Basic Need Satisfaction in General Scale – BNSG-S was developed by Edward L. Deci & Richard M. Ryan (2000). It is designed to measure Basic Psychological Need Satisfaction. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 21 items organized into 3 factors/subscales: Autonomy, Competence, Relatedness.
| Factor / Subscale | Items | N |
|---|---|---|
| Autonomy | 1,4,8,11,17,20 | 6 |
| Competence | 3,5,10,13,15,19 | 6 |
| Relatedness | 2,6,7,9,12,14,16,18,21 | 9 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Not at all true, 2 = 2, 3 = 3, 4 = Somewhat true, 5 = 5, 6 = 6, 7 = Very true.
The scale includes 9 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 1 to 7. Interpretation guidelines:
- Low Need Satisfaction: 1 – 3
- Moderate Need Satisfaction: 4 – 5
- High Need Satisfaction: 6 – 7
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Typically ranges from 0.70 to 0.90 for the subscales.
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.