Crain W C, Ertel D, Gorman B S
Int J Addict. 1975;10(5):849-56. doi: 10.3109/10826087509027343.
Three groups of college drug users--those expressing a preference for marijuana, amphetamines, or barbiturates--reported on experiences resulting from their drugs, and these groups, together with a group of nondrug-users, completed the Omnibus Personality Inventory (OPI). On the OPI the nonusers appeared more conventional and conforming than each drug group. Those preferring marijuana were less anxious than any other group, but the most distinctive group was that preferring barbiturates, which appeared the least intellectually inclined and the most emotionally distressed. This group's personality dispositions also seemed generally concordant with the experiences they reported from the drug.
三组大学生吸毒者——分别表示偏好大麻、安非他命或巴比妥酸盐的人群——报告了使用这些毒品后的体验，并且这三组人与一组非吸毒者共同完成了综合人格量表（OPI）测试。在OPI测试中，非吸毒者显得比每个吸毒组更加传统和顺从。那些偏好大麻的人比其他任何组的焦虑程度都要低，但最具独特性的组是偏好巴比妥酸盐的那一组，他们在智力倾向上表现最低，情绪困扰程度最高。该组的人格倾向似乎也总体上与他们报告的吸毒体验相一致。
