If we can locate groups peculiarly subject to such pressures, we should expect to find fairly high rates of deviant behavior in these groups, not because the human beings comprising them are compounded of distinctive biological tendencies but because they are responding normally to the social situation in which they find themselves.  Our perspective is sociological.  We look at variations in rates of deviant behavior, not at its incidence.  Should our quest be at all successful, some forms of deviant behavior will be found to be as psychologically normal as conforming behavior, and the equation of deviation and psychological abnormality will be put in question (1968, p. 186).