“LaCour has not produced the original survey data from which someone else could independently confirm the validity of the reported findings,” she wrote.
LaCour did not consent to the retraction, according to McNutt. On his Web site, LaCour posted a statement that he will issue a response by Friday. He did not immediately respond to an e-mail.
It was expected that Science would take action after LaCour’s co-author, Columbia University political scientist Donald P. Green, issued a letter disavowing the results of the study and asking for it to be retracted. Green’s request was first reported by the Web site Retraction Watch but spawned headlines around the country, as the initial paper had been widely reported, including by The Washington Post.
Green’s letter, and other evidence that parts of the study were suspect, shook the political science field and dealt a blow to efforts to show that door-to-door campaigns could change people’s minds on deeply held beliefs. The research had led to similar efforts around transgender rights and abortion.