Unique Contribution Rate Calculator
Unique Contribution Rate (UCR) is the percentage of evidence-fit leads surfaced by a source that were not surfaced by the comparison source stack in the same requisition-level test.
An evidence-fit lead is a lead the recruiter actually reviewed against the same job-relevant standard used for every other source in the test. Appearing in an unreviewed result list does not qualify.
| Source / lane | Evidence-fit leads | Unique to this source | UCR | Optional cost | Cost / unique | |
|---|---|---|---|---|---|---|
| 27% | — | |||||
| 45% | — | |||||
| 73% | — | |||||
| 39% | — |
How to read the result
A large share of the evidence-fit leads from this source were not surfaced by the other sources in the same comparison. The source appears additive for this requisition and test design.
Most evidence-fit leads also appeared elsewhere. That can indicate redundancy, but do not cut a source without considering role family, downstream outcomes, speed, response, cost, and source-order effects.
Do not compare unlike tests
- Keep the requisition and search window fixed.
- Use comparable effort or evidence-fit review caps per source.
- Rotate source order across repeated tests so the first source does not automatically look more unique.
- Dedupe on stable identity anchors, with human review when identity is uncertain.
- Report UCR by role family rather than blending unlike markets into one headline number.
The formula
UCR(source) = evidence-fit leads unique to that source / evidence-fit leads surfaced by that source
Use the same evidence-fit definition across sources. Read the full methodology and test protocol before presenting results to leadership.