Origins
In 1954 American psychologist Julian Rotter proposed a social learning theory in which behavior depends on expectancies and the value of reinforcement. In therapy he noticed that some clients credited success to themselves and others to luck, and that the latter changed little even when rewarded. His 1966 monograph "Generalized expectancies for internal versus external control of reinforcement" introduced locus of control and the 29-item I-E scale. It became one of the most cited papers in psychology.
Internals vs. externals
People with an internal locus believe effort pays off. They tend to seek information, stick to healthy habits, and report higher job satisfaction and performance. Meta-analyses link an external locus to greater stress vulnerability and burnout risk. Yet an extreme internal locus can lead to self-blame for things no one could control. Locus of control is a general disposition. That separates it from attribution, which is how you explain a specific event, and from self-efficacy, your belief that you can handle a particular task.
Applications
Martin Seligman's research on learned helplessness showed that repeated uncontrollable experiences can teach an external outlook. Educators build internal control by praising effort over outcomes, and workplaces that grant autonomy boost self-determination and motivation. In health psychology, the Multidimensional Health Locus of Control scale helps predict whether patients follow treatment.
FAQ
- Is an internal locus always better?
- Usually more adaptive, but blaming yourself for uncontrollable events can fuel depression.
- Can locus of control change?
- Yes—success experiences, autonomy, and feedback style can shift it over time.
Sources reviewed: 2026-10-26
References
- Rotter, J. B. (1966). Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs, 80(1), 1–28.
- Lefcourt, H. M. (1982). Locus of Control: Current Trends in Theory and Research (2nd ed.). Erlbaum.
- Ng, T. W. H., Sorensen, K. L., & Eby, L. T. (2006). Locus of control at work: a meta-analysis. Journal of Organizational Behavior, 27(8), 1057–1087.
