EV-0015
Fairness is four things, not one
Colquitt, J. A., Conlon, D. E., Wesson, M. J., Porter, C. O. L. H., & Ng, K. Y. (2001). Journal of Applied Psychology, 86(3), 425–445 · Source
What this entitles us to say
A meta-analysis of 183 studies establishing that workplace fairness is not one judgment but four distinguishable ones — distributive, procedural, interpersonal and informational — each with its own relationships to outcomes.
What it found
183 justice studies, meta-analyzed. The central contribution is structural: fairness at work resolves into four distinguishable dimensions, each relating to outcomes in its own way.
- Distributive — was the outcome itself fair? - Procedural — was the process that produced it fair? - Interpersonal — was I treated with dignity and respect while it happened? - Informational — was I given an adequate explanation?
The last two were previously bundled together as "interactional justice." Splitting them was one of the paper's contributions, and it matters here: being decent to someone and explaining yourself to them are different acts, and people score them separately.
Why it matters here
This is the structural backbone of the Justice half of the trait, and it converts a vague virtue into four things a leader can actually be coached on. It also explains something the book asserts but does not dissect: why two leaders can make the identical call and only one of them is resented.
Three of the four dimensions are entirely within a leader's control regardless of the outcome. A leader who must deliver a bad result can still run a clean process, treat the person with dignity, and explain the reasoning. That is the practical content of this trait.
The limits
Correlational, and justice perceptions and outcomes are usually reported by the same person at the same time, which inflates the relationships. It measures perceived fairness, not actual fairness — the two can differ, and this literature cannot tell you which decision was objectively right. Verified to abstract level; no coefficient may be quoted from here.
What we do not say
any figure, or that fairness causes the outcomes. Correlational, self-reported, and about perceived rather than actual fairness.