Behavior Intervention Rating Scale – BIRS
Measures teachers' perceptions of the acceptability and effectiveness of behavior interventions.
Scale Development & Technical Details
Scale Overview
The Behavior Intervention Rating Scale – BIRS was developed by Stephen N. Elliott and Mary Von Brock Treuting (1991). It is designed to measure Treatment acceptability and effectiveness. The scale is intended for use with Teachers.
Scale Structure
This instrument consists of 24 items organized into 3 factors/subscales: Acceptability, Effectiveness, Time.
| Factor / Subscale | Items | N |
|---|---|---|
| Acceptability | 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 | 15 |
| Effectiveness | 17,18,20,21,22,23,24 | 7 |
| Time | 16,19 | 2 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly Disagree, 2 = Disagree, 3 = Slightly Disagree, 4 = Slightly Agree, 5 = Agree, 6 = Strongly Agree.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 24 to 144. Interpretation guidelines:
- Low Acceptability and Effectiveness: 24 – 64
- Moderate Acceptability and Effectiveness: 65 – 104
- High Acceptability and Effectiveness: 105 – 144
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Total scale alpha: 0.97, Acceptability: 0.97, Effectiveness: 0.92, Time: 0.87.
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.