The 1983 ISIS Survey was a survey conducted by the Institute for the Scientific Investigation of Sexuality under the leadership of psychologist Paul Cameron, in an attempt to "expose" what Cameron felt were insidious going-ons among homosexuals. The survey asked a series of questions regarding sexual and social practices to 4340 people; only 65 of the people surveyed claimed to be homosexual/lesbian or bisexual. According to Cameron, his findings supported his hypothesis that homosexuality is a deviant lifestyle that encourages sexual perversion and crime; chief among his findings: