Scale Overview
The Rotter’s Locus of Control Scale (LOC) was developed by Julian B. Rotter (1966). It is designed to measure Locus of Control. The scale is intended for use with Adults and adolescents.
Scale Structure
This instrument consists of 29 items organized into 2 factors/subscales: Locus of Control, Filler Items.
| Factor / Subscale |
Items |
N |
| Locus of Control |
2,3,4,5,6,7,9,10,11,12,13,15,16,17,18,20,21,22,23,25,26,28,29 |
23 |
| Filler Items |
1,8,14,19,24,27 |
6 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: a = Statement A, b = Statement B.
Scoring
Items are summed to produce a total score.
Total scores range from 0 to 23. Interpretation guidelines:
- Strong Internal Locus of Control: 0 – 8
- Intermediate Locus of Control: 9 – 14
- Strong External Locus of Control: 15 – 23
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Internal consistency estimates range from .65 to .79.
Administration
The scale is self-administered and typically takes approximately 15 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.