Certainty in Religious Belief Scale – CRBS
Measures the degree of certainty with which religious beliefs are held, regardless of the direction of the belief.
Scale Development & Technical Details
Scale Overview
The Certainty in Religious Belief Scale – CRBS was developed by Robert H. Thouless (1935). It is designed to measure Certainty in religious belief. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 25 items.
Response Format
Respondents rate each item using a custom response format.
Response anchors: +3 = I am completely certain that this statement is true., +2 = I am almost certain that this statement is true., +1 = I think that this statement is true, but I am not at all certain., 0 = I am completely uncertain about this statement., -1 = I think this statement is false, but I am not at all certain., -2 = I am almost certain that this statement is false., -3 = I am completely certain that this statement is false..
Scoring
Item scores are averaged to produce a mean score.
Total scores range from 0 to 3. Interpretation guidelines:
- Low certainty / High tentativeness: 0 – 1
- Moderate certainty / Strong conviction: 1 – 2
- High certainty / Complete conviction: 2 – 3
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Not reported.
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.