In one line: Motivation is the force that starts, directs and sustains behaviour — and it comes from inside and outside us.
The HL extension of motivation layers onto every context. Motivation helps explain health behaviours, learning, relationships and more.
This links to the concept of causality: motivation is a driving cause of behaviour, and to change — motivation is what makes behaviour change stick. HL note: assessed on Paper 3, a source-based data paper.
Memory hook: Start, direct, sustain. Motivation is the engine of behaviour.
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Key idea: Motivation can come from within (enjoyment) or from outside (rewards) — and the source matters.
Types and drivers of motivation
Intrinsic motivation
Doing something for its own sake — because it's interesting or satisfying. Tends to be durable and self-sustaining.
Extrinsic motivation
Doing something for an external reward or to avoid punishment (money, grades, praise). Effective but can fade.
Self-determination
People are most motivated when they feel autonomy, competence and relatedness — needs that support intrinsic motivation.
Inside · Outside · Needs
Take a student revising. Extrinsic motivation (grades) may start them off; but intrinsic motivation (genuine interest) sustains effort far better. Supporting autonomy, competence and relatedness boosts intrinsic drive. Motivation is a key cause of whether behaviour changes and lasts.
Go further — higher-level insight: Rewards can backfire. The overjustification effect means paying people for something they already enjoy can reduce their intrinsic motivation. This counter-intuitive finding is a strong Paper-3 evaluation point about how motivation works.
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Key idea: Motivation theories are practical and well-evidenced but simplify a complex, varying process.
Strengths and limitations
| Strengths and limitations | Strengths | Limitations |
|---|---|---|
| Application | Improves education, health, workplaces | Optimal motivation varies by person and culture |
| Evidence | Supported by studies (e.g. overjustification effect) | Motivation is internal and hard to measure directly |
| Scope | Explains persistence and behaviour change | Intrinsic/extrinsic can overlap and interact |
So motivation research offers practical, well-supported insight, but a good Paper-3 evaluation notes motivation is an internal state that's hard to measure, that intrinsic and extrinsic sources overlap and interact, and that what motivates people varies across individuals and cultures. Data on motivation should be read with these limits in mind.
Watch out: More reward isn't always more motivation. Extrinsic rewards can undermine intrinsic interest — so 'just pay people more' is not always the answer.