Extraversion
tendency to be outgoing, sociable, assertive, and energized by other people
§1The Principia rendering
A copyright-clean measure of this construct, authored by Principia and free to use — the one we can show in full.
Predicted psychometrics. These 10 items carry a design grade of A (avg design score 94/100) from the item-design model — an estimate pending calibration, not a measured reliability. Real responses (via deployment) sharpen it toward measured, which is what the licensing model collects.
§2The established instruments
What the field already uses — named and cited, not reproduced (item wording is copyrighted and withheld pending clearance).
- DISC Assessment — Marston (framework); various publishers
- Sixteen Personality Factor Questionnaire (16PF), 5th ed. — Cattell
- IPIP-NEO-120 (Johnson) — Johnson
- IPIP-NEO (International Personality Item Pool, NEO) — Goldberg
- IPIP-NEO-300 (Johnson) — Johnson
- Myers-Briggs Type Indicator (MBTI) — Briggs Myers & Briggs
- Occupational Personality Questionnaire (OPQ32) — Saville & Holdsworth (SHL)
- IPIP Big-Five Factor Markers (50-item) — Goldberg
- Hogan Personality Inventory (HPI) — Hogan & Hogan
- HEXACO-PI-R — Lee & Ashton
- Mini-IPIP — Donnellan, Oswald, Baird, & Lucas
§3The math on what we know
Synthesized priors from the live registry: pooled r, studies (k), total N, top study grade, and heterogeneity. Rows flagged for heterogeneity or single-study evidence are directional, not settled — read them as a central tendency.
What extraversion predicts
| Outcome | r | k | N | Grade | Confidence |
|---|---|---|---|---|---|
| Work Engagement | +0.38 | 1 | 16,166 | A | single study |
| Burnout | +0.33 | 1 | 50 | A | single study |
| Job Satisfaction | +0.25 | 1 | 50 | A | single study |
| Sales Performance | +0.18 | 1 | 50 | A | single study |
| Overall Job Performance | +0.10 | 1 | 6,453 | A | single study |
| Counterproductive Work Behaviours | −0.05 | 1 | 7,645 | A | single study |