“…(Further empirical support for this conclusion can be found in comparisons of drug users and nonusers by Cohen and Klein, [1972], Glaser, Lander, and Abbott [1971], Gordon [1972], Green, Blake, Carboy, and Zehaysern [1971].) Knecht, Cundick, Edwards, and Gunderson (1972) reported a typical study of college students which supports this view; they found a negative correlation of .6 between scores on a social conformity scale and having used marijuana. White, Schoolar, and Cohen (1970) found that 25% of a nondrug-using group were in a personality category described as conformity/cooperative/conventional, while none of the heavy users were in this category.…”