Facts about Illusion of Control
- 08
Casino gamblers who selected their own lottery numbers wagered 77 percent more money than those assigned numbers randomly, despite mathematical probability remaining identical across both conditions.
- 07
Surgeons who customized their surgical approach to individual patient preferences reported 28 percent greater confidence in their decisions despite studies showing personalization had no measurable effect on surgical outcomes or complication rates.
- 06
People diagnosed with depression who kept detailed daily logs of their moods showed 40 percent greater perceived control over their emotional states than those receiving standard therapy alone, despite clinical assessments showing no difference in actual symptom improvement.
- 05
Bowling players who threw the ball themselves scored 35 percent higher in a 1976 study than those whose balls were rolled by an attendant, despite the physical mechanics being identical.
- 04
In 2010, research by psychologists at Ohio State University found that people who performed superstitious rituals before a task improved their performance by 35 percent, attributing success to their control despite the ritual having no causal connection to outcomes.
- 03
Patients undergoing surgery who were allowed to choose their anesthesia method reported 23 percent less post-operative anxiety than those assigned anesthesia, despite medical evidence showing choice had no impact on actual pain outcomes.
- 02
Trading floors where investors actively manage their portfolios show 66 percent higher confidence in their decisions than passive index fund investors, despite research showing active management underperforms benchmarks approximately 90 percent of the time.
- 01
Ellen Langer's 1975 lottery ticket experiment demonstrated that people buying their own tickets felt significantly more control than those randomly assigned tickets, despite identical winning odds.