Open Hemispheric Brain Dominance Scale – OHBDS
Measures individual preferences for left-brain (logical, orderly) versus right-brain (creative, intuitive) cognitive and behavioral styles.
Scale Development & Technical Details
Scale Overview
The Open Hemispheric Brain Dominance Scale – OHBDS was developed by Eric Jorgenson (2015). It is designed to measure Hemispheric Brain Dominance. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 80 items organized into 2 factors/subscales: Left Brain Dominance, Right Brain Dominance.
| Factor / Subscale | Items | N |
|---|---|---|
| Left Brain Dominance | 1,3,5,7,9,11,13,15,17,19,21,23,25,26,27,29,30,31,33,35,37,39,41,43,45,47,49,51,53,54,55,57,59,61,63,65,67,71,73,75,77 | 41 |
| Right Brain Dominance | 2,4,6,8,10,12,14,16,18,20,22,24,28,32,34,36,38,40,42,44,46,48,50,52,56,58,60,62,64,66,68,69,70,72,74,76,78,79,80 | 39 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Disagree, 2 = Slightly Disagree, 3 = Neutral, 4 = Slightly Agree, 5 = Agree.
The scale includes 1 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 40 to 205. Interpretation guidelines:
- Low Left-Brain Dominance (Strong Right-Brain Preference): 40 – 90
- Balanced Hemispheric Preference: 91 – 149
- High Left-Brain Dominance (Strong Left-Brain Preference): 150 – 205
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Not specified.
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.