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Updated: Oct 18, 2025

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Published on: March 19, 2014
Motivation as a function of success frequency
Katinka van der Kooij1, Lars In 't Veld1, Thomas Hennink1
1Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Van der Boechorststraat 9-1, 1081BT Amsterdam, The Netherlands.
Motivation is highest with intermediate challenge, not too easy or too hard. This study quantifies this optimal motivation using an inverted-U relationship between motivation and success frequency in a game-playing task.
Area of Science:
- Psychology
- Human-Computer Interaction
- Game Design
Background:
- The principle of intermediate challenge posits that optimal motivation occurs at a difficulty level that is neither too easy nor too hard.
- Quantifying the relationship between challenge, success, and motivation is crucial for understanding engagement in interactive systems.
Purpose of the Study:
- To test if the optimal motivation from intermediate challenge can be quantified as an inverted-U relationship between motivation and success frequency.
- To investigate how success frequency influences motivation in a target-catching game.
Main Methods:
- Two experiments were conducted with participants playing a game involving navigating a scene to catch targets.
- Experiment 1 (N=101): Free play duration; motivation measured by the probability of continuing at a given success frequency.
- Experiment 2 (N=70): Fixed play duration; motivation measured via repeated self-reports.
Main Results:
- In Experiment 1, play duration exhibited an inverted-U relationship with success frequency.
- In Experiment 2, self-reported motivation demonstrated an inverted-U relationship with success frequency.
- A linear increase in the probability to continue was observed with increasing success frequency in Experiment 1.
Conclusions:
- Motivation is dependent on success frequency, supporting the concept of intermediate challenge being optimally motivating.
- Tentative evidence suggests that the relationship between motivation and success frequency can be quantified by an inverted-U curve.
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