![freq flyer](http://www.retractionwatch.com/wp-content/uploads/2013/04/freq-flyer.jpg?w=300)
Quick updates on work by two people whose names appear frequently on Retraction Watch: Diederik Stapel and Ulrich Lichtenthaler.
Last month, we reported on the 50th retraction for Stapel. Here’s number 51 in the Journal of Experimental Social Psychology, for “The flexible unconscious: Investigating the judgmental impact of varieties of unaware perception:” Continue reading Frequent Retraction Watch fliers rack them up: Stapel hits 51, Lichtenthaler scores number 9