Locus of Control
Do you run your life, or does life happen to you? One belief that quietly steers everything.
Grounded in the research on locus of control
1954: the seedbed
Before there was a name, there was a theory. Julian Rotter, an American psychologist at Ohio State, published Social Learning and Clinical Psychology in 1954. His core idea: what you do depends on what you expect to follow. If you believe your actions move the needle, you act. If you believe nothing you do matters, you don't. That expectancy of reinforcement is the soil locus of control grew out of.
Late 1950s: the students
Two of Rotter's grad students did the dirty work first. William James and E. Jerry Phares ran unpublished doctoral dissertations testing how people's belief in control changed how they learned from rewards. They found something clean: people who thought outcomes were skill-based updated their expectations differently than people who thought outcomes were pure luck. The construct now had data, not just theory.