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R0007/2026-03-20/C004/SRC03

Research R0007 — AI Cognitive Amplifier
Run 2026-03-20
Claim C004
Search S01
Result S01-R01
Source SRC03

Construx review of programmer productivity variation studies

Source

Field Value
Title The Origins of 10x — How Valid is the Underlying Research?
Publisher Construx Software
Author(s) Steve McConnell
Date ~2019
URL https://www.construx.com/blog/the-origins-of-10x-how-valid-is-the-underlying-research/
Type Expert review

Summary

Dimension Rating
Reliability Medium
Relevance High
Bias: Missing data Low risk
Bias: Measurement N/A
Bias: Selective reporting Some concerns
Bias: Randomization N/A — not an RCT
Bias: Protocol deviation N/A — not an RCT
Bias: COI/Funding Low risk

Rationale

Dimension Rationale
Reliability Written by Steve McConnell, respected software engineering authority
Relevance Comprehensive review of the entire history of variation studies
Bias flags McConnell has an established position on this topic

Evidence Extracts

Evidence ID Summary
SRC03-E01 History of variation studies from 1968 onward