R0007/2026-03-20/C004 — Claim Definition¶
Claim as Received¶
In software engineering, every major study from Sackman (1968) through Oliveira (2023) confirms large individual variation. The most careful recent work suggests log-normal distributions with roughly a 2.4x ratio between top and bottom halves.
Claim as Clarified¶
Two sub-claims: (1) a continuous line of research from Sackman (1968) confirms large individual variation in software engineering performance, and (2) the most recent careful study (attributed to "Oliveira 2023") finds log-normal distributions with a ~2.4x ratio between top and bottom halves.
BLUF¶
The overall pattern is confirmed but the 2023 paper is by Jorgensen, not Oliveira. The 2.44x ratio and log-normal finding are accurate.
Scope¶
- Domain: Software engineering, developer productivity
- Timeframe: 1968-2023
- Testability: Verifiable against published studies
Assessment Summary¶
Probability: Likely (55-80%)
Confidence: Medium
Hypothesis outcome: H2 prevails — findings confirmed but author attribution is wrong.
[Full assessment in assessment.md.]
Status¶
| Field | Value |
|---|---|
| Date created | 2026-03-20 |
| Date completed | 2026-03-20 |
| Researcher profile | Not provided |
| Prompt version | claim v1.0-draft |
| Revisit by | 2027-03-20 |
| Revisit trigger | Verify if an "Oliveira (2023)" paper exists on this topic |