E02¶


Research	R0007 — AI Made Everyone Faster
Run	2026-03-19
Claim	C004
Source	SRC01
Evidence	SRC01-E02
Type	Statistical

2023 study confirms 2.44x ratio between top and bottom halves.

URL: https://www.sciencedirect.com/science/article/abs/pii/S0950584923000691

Extract¶

From the 2023 study in Information and Software Technology: "The coefficient of variance of the productivity of the software developers was, on average, 0.55, with the top 50% of developers having average productivity that was 2.44 times higher than the bottom 50% of developers."

Relevance to Hypotheses¶

Hypothesis	Relationship	Strength
H1	Supports	Confirms the "roughly 2.4x" ratio in the claim
H2	Supports	Confirms the finding exists
H3	Contradicts	Confirms substantial variation

Context¶

The 2.44x ratio is notably more conservative than the 10:1 or 20:1 ratios from earlier studies, reflecting improved methodology and more careful measurement.