Rokeach Dogmatism Scale – Form E (RDS-E)
Measures individual differences in dogmatism, open-mindedness, and closed belief systems.
Scale Development & Technical Details
Scale Overview
The Rokeach Dogmatism Scale – Form E (RDS-E) was developed by Milton Rokeach (1960). It is designed to measure Dogmatism. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 40 items.
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Strongly disagree, 2 = Disagree, 3 = Slightly disagree, 4 = Neither agree nor disagree, 5 = Slightly agree, 6 = Agree, 7 = Strongly agree.
Scoring
Items are summed to produce a total score.
Total scores range from 40 to 280. Interpretation guidelines:
- Low Dogmatism (Open-minded): 40 – 120
- Moderate Dogmatism: 121 – 200
- High Dogmatism (Closed-minded): 201 – 280
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of 0.68 – 0.93.
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.