NOTE TO READERS (June 1, 2015): Science magazine has retracted the study to which the article below alludes, citing misrepresentation in reported sponsorship of the study and incentives given to survey participants. One of the authors of the article, Donald P. Green, had asked for the retraction on May 19 because he said co-author Michael LaCour wasn’t able to produce the raw data underlying the study. Science magazine said “independent researchers have noted certain statistical irregularities in the responses” and cited a lack of data from the original survey. In a statement posted on the website DocumentCloud, Mr....