Scale Overview
The Spheres of Control Scale – SOCS was developed by Delroy L. Paulhus (1983). It is designed to measure Locus of Control. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 20 items organized into 2 factors/subscales: Personal Control, Interpersonal Control.
| Factor / Subscale |
Items |
N |
| Personal Control |
1,2,3,4,5,6,7,8,9,10 |
10 |
| Interpersonal Control |
11,12,13,14,15,16,17,18,19,20 |
10 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly disagree, 2 = Disagree, 3 = Slightly disagree, 4 = Neutral, 5 = Slightly agree, 6 = Agree, 7 = 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 20 to 140. Interpretation guidelines:
- Low perceived control: 20 – 59
- Moderate perceived control: 60 – 100
- High perceived control: 101 – 140
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Not specified in source.
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.