Scale Overview
The Buchanan Online Five-Factor Inventory – IPIP-41 was developed by Tom Buchanan, Lewis R. Goldberg, John A. Johnson (2005). It is designed to measure Big Five Personality Traits. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 41 items organized into 5 factors/subscales: Extraversion, Neuroticism, Conscientiousness, Agreeableness, Openness.
| Factor / Subscale |
Items |
N |
| Extraversion |
5,6,13,16,18,27,32,40,41 |
9 |
| Neuroticism |
2,3,9,12,22,28,33,36 |
8 |
| Conscientiousness |
7,8,14,20,21,26,29,31,34,39 |
10 |
| Agreeableness |
10,11,19,24,30,37,38 |
7 |
| Openness |
1,4,15,17,23,25,35 |
7 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Very inaccurate, 2 = Moderately inaccurate, 3 = Neither inaccurate nor accurate, 4 = Moderately accurate, 5 = Very accurate.
The scale includes 20 reverse-scored items to reduce acquiescence bias.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of Openness: 0.88, Conscientiousness: 0.84, Extraversion: 0.88, Agreeableness: 0.76, Neuroticism: 0.83.
Administration
The scale is self-administered and typically takes approximately 7 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.