Answers are grounded in this paper and cite their sources.
The self-perceived locus of control of three groups of alcoholics who had had varying amounts of exposure to treatment was measured on the Internal-External (I-E) scale. Alcoholics who had had more treatment perceived themselves in greater control of their behavior in general and of their drinking in particualar than those who had had less treatment.
No takes yet. Share an insight, caveat, or question.
Oziel et al. (1975) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: