§ The result
Test Partnership leads Mercer | Mettl by 8 points.
Test Partnership finishes 8 points ahead of Mercer | Mettl under rubric v1.0, 50 to 42, both scored as Assessment entries. Mercer | Mettl takes 1 of the 7 criteria, Post-Market Monitoring among them, against 6 for Test Partnership, whose share includes Article 11 Technical Documentation. Article 11 Technical Documentation is both the widest raw gap and the heaviest weighted swing — Mercer | Mettl 38, Test Partnership 57 — and at a 20% weight it carries 43% of the weighted advantage Test Partnership holds across the 6 criteria on that side of the table.
Vendor profile
Mercer | Mettl
Mercer | Mettl is an online talent assessment and remote-proctoring platform offering psychometric, aptitude, coding, and skills tests plus AI-assisted exam proctoring and scoring for hiring, certification, and L&D.
Vendor profile
Test Partnership
Test Partnership publishes computer-adaptive aptitude tests, the TPAQ personality questionnaire and MindmetriQ game-based cognitive assessments. Employers review, rank and export the resulting norm-referenced percentile and sten scores in its dashboard, through its API or in integrated ATSs.
§ The record
Mercer | Mettl and Test Partnership are both filed under Assessment AI. They also share 1 secondary category: Screening.
Both are in scope of NYC LL 144, Illinois HB 3773, EU AI Act, Colorado AI Act and Mobley v. Workday.
| Record | Mercer | Mettl | Test Partnership |
|---|---|---|
| Price tier | Mid | Mid |
| Headquarters | IN | GB |
| Founded | 2010 | 2012 |
§ What decides it
The criteria that move the gap, heaviest swing first.
20% weight · 41% of the movement so far
Article 11 Technical Documentation
Mercer | Mettl 38 · Test Partnership 57
3.8 weighted points to Test Partnership
12% weight · 57% of the movement so far
Human Oversight Design
Mercer | Mettl 45 · Test Partnership 58
1.6 weighted points to Test Partnership
15% weight · 70% of the movement so far
FRIA Support
Mercer | Mettl 28 · Test Partnership 36
1.2 weighted points to Test Partnership
18% weight · 82% of the movement so far
Bias Audit Transparency
Mercer | Mettl 42 · Test Partnership 48
1.1 weighted points to Test Partnership
8% weight · 90% of the movement so far
Customer Documentation
Mercer | Mettl 52 · Test Partnership 62
0.8 weighted points to Test Partnership
12% weight · 97% of the movement so far
Post-Market Monitoring
Mercer | Mettl 38 · Test Partnership 33
0.6 weighted points to Mercer | Mettl
15% weight · 100% of the movement so far
Data Governance Disclosure
Mercer | Mettl 55 · Test Partnership 57
0.3 weighted points to Test Partnership
Weighted delta is the raw difference times the criterion weight, so the 7 figures above sum to -8.1 — the difference between the two totals before either is rounded. Shares are of 9.3 points of movement counted without direction. The table below rounds each side to a whole number first, so its Δ raw total reads -8 beside that -8.1.
§ Category-by-category
Raw score per criterion, with weighted delta.
Δ is Mercer | Mettl minus Test Partnership.
| Category | Weight | Mercer | Mettl | Test Partnership | Δ raw | Δ weighted |
|---|---|---|---|---|---|
| Article 11 Technical Documentation | 20% | 38 | 57 | -19 | -3.8 |
| Bias Audit Transparency | 18% | 42 | 48 | -6 | -1.1 |
| FRIA Support | 15% | 28 | 36 | -8 | -1.2 |
| Data Governance Disclosure | 15% | 55 | 57 | -2 | -0.3 |
| Human Oversight Design | 12% | 45 | 58 | -13 | -1.6 |
| Post-Market Monitoring | 12% | 38 | 33 | +5 | +0.6 |
| Customer Documentation | 8% | 52 | 62 | -10 | -0.8 |
| Total | 100% | 42 (F) | 50 (F) | -8 | -8.1 |
§ Evidence
Cited sources and documented absences, criterion by criterion.
An absence is a finding, not a blank: the reviewer looked for a named artefact and recorded that it is not located. Where a source sits is a fact about hosting only.
| Criterion | Weight | Mercer | Mettl | Test Partnership | ||||
|---|---|---|---|---|---|---|---|
| Cited | Absences | Audit / hosting | Cited | Absences | Audit / hosting | ||
| Article 11 Technical Documentation | 20% | 2 | 1 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domain |
| Bias Audit Transparency | 18% | 0 | 1 | — | 3 | 1 | Sources on the vendor's own domain |
| FRIA Support | 15% | 1 | 1 | — | 2 | 1 | Sources on the vendor's own domain |
| Data Governance Disclosure | 15% | 2 | 0 | Sources on the vendor's own domain | 4 | 1 | Sources on the vendor's own domainSources on a separate domain |
| Human Oversight Design | 12% | 2 | 0 | Sources on the vendor's own domain | 5 | 0 | Sources on the vendor's own domainSources on a separate domain |
| Post-Market Monitoring | 12% | 1 | 1 | Sources on the vendor's own domain | 3 | 1 | Sources on the vendor's own domain |
| Customer Documentation | 8% | 1 | 1 | Sources on the vendor's own domain | 5 | 1 | Sources on the vendor's own domainSources on a separate domain |
| All criteria | 100% | 9 | 5 | Sources on the vendor's own domain | 26 | 6 | Sources on the vendor's own domainSources on a separate domain |
Mercer | Mettl has 14 evidence rows across 7 of 7 criteria — 9 with a source URL, 5 documented absences; Test Partnership has 32 evidence rows across 7 of 7 criteria — 26 with a source URL, 6 documented absences; some documentation or audit rows for Test Partnership sit on a domain separate from the vendor's own site.
Provenance
The scores above are documented by 46 evidence rows on file for these two vendors: 14 for Mercer | Mettl, across 2 distinct source domains, and 32 for Test Partnership, across 3 distinct source domains.
- Rubric
- v1.0
- Mercer | Mettl last reviewed
- June 7, 2026 · HireAIScore editorial team
- Test Partnership last reviewed
- September 25, 2026 · HireAIScore editorial team
HireAIScore scores are editorial research, not legal advice, and no vendor pays for placement, scoring or removal — see the methodology, conflicts policy and terms.
§ Where next