Psychology / Performance / Pressure
Psychology / Performance / PressureJansen Effect (Dan Jansen)
Excellent training performance can crumble in competition.
Popularity
Usefulness
Aliases
Dan Jansen effect / choking-in-competition effect
Domains
Psychology, performance, sports, pressure
Definition
- The Jansen Effect describes how an athlete (or performer) who is strong and consistent in training repeatedly fails in actual competition — peak ability collapsing under the pressure of the big moment.
Core Idea
- Excellent training performance can crumble in competition.
- High-stakes pressure undermines proven ability.
- The decisive battle is psychological as much as physical.
How It Works
- In training, free of pressure, skill performs at its true level.
- In competition, expectation and anxiety disrupt focus and execution.
- The performer underperforms — repeatedly, if the pressure pattern is not addressed.
Usage Example
- A capable employee who shines in preparation freezes in the high-stakes pitch — a textbook Jansen Effect that mental preparation and pressure exposure could ease.
Famous Example
- Example: Named for American speed skater Dan Jansen, renowned in training and as a favorite, who repeatedly faltered at the Olympics before finally winning gold in 1994.
- Why it fits this rule: His career is the archetypal story of choking under competitive pressure — and ultimately overcoming it.
Use Cases / Situations Where It Applies
- Performance under pressure (sport, exams, presentations).
- Managing competitive anxiety.
- Coaching and mental preparation.
When Not to Use or Common Misuse
- Do not label every competitive failure as choking.
- Do not raise pressure expecting it to sharpen performance.
- Do not ignore that pressure can be trained for and overcome (as Jansen did).
Rule Invention / Origin
- Invented by: No single attributed author; named from Dan Jansen's career.
- Year of invention: Modern (Jansen's Olympic career, 1984–1994).
- Country / context of origin: United States (popular psychology framing).
Evidence / Research Basis
- Consistent with research on choking under pressure and the Yerkes-Dodson law.
