Scale Overview
The Teacher Efficacy Scale (TES) was developed by Sherri Gibson (1984). It is designed to measure Teacher Efficacy. The scale is intended for use with Teachers.
Scale Structure
This instrument consists of 30 items organized into 2 factors/subscales: Personal Teaching Efficacy, General Teaching Efficacy.
| Factor / Subscale |
Items |
N |
| Personal Teaching Efficacy |
1,3,7,8,11,12,13,14,15,18,19,20,21,24,25,29 |
16 |
| General Teaching Efficacy |
2,4,5,6,9,10,16,17,22,23,26,27,28,30 |
14 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly Disagree, 2 = Moderately Disagree, 3 = Slightly Disagree, 4 = Slightly Agree, 5 = Moderately Agree, 6 = Strongly Agree.
The scale includes 10 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 30 to 180. Interpretation guidelines:
- Low Efficacy: 30 – 80
- Moderate Efficacy: 81 – 130
- High Efficacy: 131 – 180
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Not specified.
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.