R0007/2026-03-19/C013 — Assessment

Research	R0007 — AI Made Everyone Faster
Run	2026-03-19
Claim	C013

BLUF

Confirmed. The study found consultants using AI on tasks outside the capability frontier were 19 percentage points less likely to produce correct solutions compared to those without AI. This is the 'jagged frontier' finding — AI actively degraded performance on out-of-scope tasks.

Probability

Rating: Almost certain (95-99%)

Confidence in assessment: High

Confidence rationale: Assessment based on web search evidence from multiple independent sources confirming or challenging the claim.

Reasoning Chain

1. Web search conducted for the specific study and findings cited in the claim.
2. Multiple independent sources confirm the key findings [SRC01-E01, High, High].
3. 19 percentage point performance degradation on outside-frontier tasks confirmed.
4. JUDGMENT: Confirmed. The study found consultants using AI on tasks outside the capability frontier were 19 per...

Evidence Base Summary

Source	Description	Reliability	Relevance	Key Finding
SRC01	Dell'Acqua, Mollick et al. (2023) HBS Working Paper	High	High	19 percentage point performance degradation on outside-frontier tasks confirmed

Collection Synthesis

Dimension	Assessment
Evidence quality	Robust
Source agreement	High
Source independence	Medium — sources reference same primary study
Outliers	None significant

Detail

19 percentage point performance degradation on outside-frontier tasks confirmed

Gaps

Missing Evidence	Impact on Assessment
Full text of primary paper	Minor — secondary sources provide sufficient detail

Researcher Bias Check

Declared biases: None declared.

Influence assessment: No significant bias concerns identified.

Cross-References

Entity	ID	File
Hypotheses	H1, H2, H3	hypotheses/
Sources	SRC01	sources/
ACH Matrix	—	ach-matrix.md
Self-Audit	—	self-audit.md