NIMF Urges 'Thoughtful Conversation' In Game Addiction Study Debate on Gamasutra reflects NIMF's statement that "Regardless of whether you agree with the exact statistics in Dr. Gentile’s study, it provides the gaming industry, medical experts, and public policymakers with a new opportunity to have a thoughtful conversation regarding the effects of video games on kids." Meanwhile, Iowa State University Responds To ESA Criticisms on IncGamers talks with Dr. Gentile himself, and he tells them criticisms of his reports' methodology (specifically using "convenience sampling," rather than a "probability sample") is a "trick the ESA is trying to get you to pick up on," explaining, "Every survey is a volunteer survey, you have to agree to do it, so therefore it is a ‘convenience' sample."