Teacher Locus of Control – TLC
Measures teachers' perceptions of internal versus external control over student academic success and failure.
Scale Development & Technical Details
Scale Overview
The Teacher Locus of Control – TLC was developed by Rose, J. S., & Medway, F. J. (1981). It is designed to measure Teacher Locus of Control. The scale is intended for use with Teachers.
Scale Structure
This instrument consists of 25 items organized into 2 factors/subscales: Student Success (I+), Student Failure (I-).
| Factor / Subscale | Items | N |
|---|---|---|
| Student Success (I+) | 1,4,7,8,10,12,16,19,22,24,25 | 11 |
| Student Failure (I-) | 2,3,5,6,9,11,13,14,15,17,18,20,21,23 | 14 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: A = Option A, B = Option B.
The scale includes 14 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 25. Interpretation guidelines:
- External Locus of Control: 0 – 12
- Internal Locus of Control: 13 – 25
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of KR20: 0.71 (Success), 0.81 (Failure).
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.