BIS/BAS Scales
24-item measure of behavioral inhibition and activation systems
Two systems run the show in your brain: one that hits the brakes and one that hits the gas. The Behavioral Inhibition System (BIS) makes you stop and scan for danger. The Behavioral Activation System (BAS) pushes you toward rewards. How these two balance out says a lot about how you approach the world. 24 items measure BIS plus three BAS facets - Drive, Fun Seeking, and Reward Responsiveness. About 8 minutes.
What Are the BIS/BAS Scales?
The Behavioral Inhibition System (BIS) and Behavioral Activation System (BAS) were proposed by Gray in the 1980s to describe two fundamental motivational systems in the brain. Carver and White (1994) developed this 24-item scale to measure individual differences in these systems - it is the most widely used measure of its kind.
The Four Dimensions
Behavioral Inhibition System (BIS) - 7 items Sensitive to signs of punishment and threat. Makes you stop and check before acting. High scorers tend toward caution and anxiety; low scorers are less rattled by risk.
BAS Drive - 4 items Persistence in pursuing goals. High scorers are relentless when they want something.
BAS Fun Seeking - 4 items Desire for novelty and instant reward. High scorers jump at new experiences and enjoy spontaneity.
BAS Reward Responsiveness - 5 items Responsiveness to reward and positive emotion. High scorers feel excitement intensely when things go well.
> Disclaimer: This test is for educational and self-exploration purposes only. It is not a clinical diagnostic tool. The BIS/BAS scales are a research instrument for personality and motivation, not a clinical screening measure.
Scoring Guide
Dimensional mean scores (1-4 scale). BIS=items 2,8,13,16,19,22,24 (note: 2 and 22 NOT reverse-scored, rest are). BAS Drive=3,9,12,21. BAS Fun Seeking=5,10,15,20. BAS Reward Responsiveness=4,7,14,18,23. Each item 1-4, reverse with 5-raw. All items reverse except 2 and 22.Result Interpretation
After completing the 24 questions, you'll receive an immediate, detailed report with:
- Your score — calculated automatically based on your responses
- Score interpretation — what your score means in practical terms
- Dimension breakdown — separate scores for each sub-scale
- Context — how your results compare to general population norms where available
All results are displayed on screen. No account or login needed.