“This would rig results in favor of finding a positive association between gun ownership and mass shootings,” Kleck said. This is all the assistance I can provide at this time,” Lankford told FoxNews.com by email. In his study, Lankford says he took NYPD data on mass shootings -- which he acknowledges misses international cases -- and "supplemented [it] with additional data” internationally. A much-heralded and widely cited study of 171 countries over nearly a half century purports to show more guns mean more mass shootings, but critics say the report uses bad methodology in a way that rigs the results. “No qualified scholar would accept work by a researcher who could not, or would not, even explain exactly how he measured his most important variable [mass shootings],” Kleck said.

Source: Fox News July 28, 2016 19:41 UTC