R0007/2026-03-20/C004/SRC02/E01¶
Log-normal distribution with 2.44x ratio — author is Jorgensen, not Oliveira
URL: https://www.sciencedirect.com/science/article/abs/pii/S0950584923000691
Extract¶
The coefficient of variance of software developer productivity was 0.55 on average. The top 50% of developers had average productivity 2.44 times higher than the bottom 50%. All productivity samples were right-skewed (average skew 1.79). The distributions with best fit were log-normal and power-law-with-exponential-cutoff. About 30% of observed productivity variance was within-developer variance. The author is Magne Jorgensen — not "Oliveira" as stated in the claim.
Relevance to Hypotheses¶
| Hypothesis | Relationship | Strength |
|---|---|---|
| H1 | Contradicts | Author name is wrong |
| H2 | Supports | Confirms findings but wrong attribution |
| H3 | Contradicts | The substantive findings are real |
Context¶
The claim states "Oliveira (2023)" but no paper by Oliveira on this topic was found. The matching paper is by Jorgensen.