The two linked source posts are excellent: http://datacolada.org/109 http://datacolada.org/109 http://datacolada.org/98 http://datacolada.org/98 This latest

The two linked source posts are excellent: http://datacolada.org/109 http://datacolada.org/109 http://datacolada.org/98 http://datacolada.org/98 This latest one has great sleuthing examples: http://datacolada.org/112 http://datacolada.org/112 Their analysis suggested that the data (originally collected using Qualtrics) had been modified, i.e. that the data in the data files would not match the original data (still stored on Qualtrics' servers). It turned out they were right: We have received confirmation, from outside of Harvard, that Harvard's investigators did look at the original Qualtrics data file and that the data had been modified.