I'm skeptical of Wilson's reporting. One of his quoted studies looked interesting (slide 20, Fucci 2016, "An External Replication on the Effects of Test-driven

I'm skeptical of Wilson's reporting. One of his quoted studies looked interesting (slide 20, Fucci 2016, "An External Replication on the Effects of Test-driven Development Using a Multi-site Blind Analysis Approach"), so I looked it up. Wilson describes that study as involving 39 professionals on real projects. But when I looked at the actual study [1], it involved 21 graduate students working on two toy problems, the Bowling Game kata and "Mars Rover API." This is a disappointing misrepresentation of the study. A charitable interpretation is that he was referring to a different study, and accidentally put the wrong reference on that slide. Or maybe the actual talk explains the difference. I'm not sure—I didn't look deeper. [1] http://people.brunel.ac.uk/~csstmms/FucciEtAl_ESEM2016.pdf http://people.brunel.ac.uk/~csstmms/FucciEtAl_ESEM2016.pdf