It’s now known that Diederik Stapel, the Dutch social psychologist who was suspended by Tilburg University in September, faked dozens of studies and managed not to get caught for years despite his outrageous fabrications. But how, exactly, did he do it?

That question won’t be fully answered for a while—the investigation into the vast fraud is continuing. But a just-released English version of Tilburg’s interim report on Stapel’s deception begins to fill in some of the details of how he manipulated those who worked with him.
http://chronicle.com/blogs/percolator/the-fraud-who-fooled-almost-everyone/27917