How do we explain the causes of our own and others' behaviour, and what biases distort these judgements?
Explain attribution theory, including internal and external attributions, and the fundamental attribution error, actor-observer bias and self-serving bias
WACE Year 12 Psychology Unit 3: attribution theory, internal (dispositional) versus external (situational) attributions, and the fundamental attribution error, actor-observer bias and self-serving bias.
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What this dot point is asking
SCSA asks you to define attribution, distinguish internal from external attributions, and explain the main attributional biases with examples. The marked skill is correctly identifying which bias is at work in a described scenario.
What attribution is
Attribution is the cognitive process of assigning a cause to behaviour, our own or someone else's. Fritz Heider, who founded attribution theory, argued that people act as intuitive scientists, constantly trying to explain why things happen so the social world feels predictable.
Every explanation falls into one of two broad types.
- Internal (dispositional) attribution locates the cause within the person: their personality, ability, effort or attitude. We say someone failed because they are lazy.
- External (situational) attribution locates the cause in the environment or circumstances: luck, task difficulty, other people or the situation. We say someone failed because the test was unfair.
The fundamental attribution error
The fundamental attribution error is the tendency to overestimate internal, dispositional causes and underestimate external, situational causes when explaining other people's behaviour. Seeing a driver cut us off, we conclude they are rude (disposition) rather than considering they may be rushing to a hospital (situation). We do this even when situational pressures are obvious.
The actor-observer bias
The actor-observer bias is the tendency to attribute our own behaviour to the situation but others' behaviour to their disposition. When we trip, we blame the uneven pavement (external); when someone else trips, we think they are clumsy (internal). This happens partly because we can see the situational pressures acting on ourselves more clearly than those acting on others.
The self-serving bias
The self-serving bias is the tendency to attribute our successes to internal factors and our failures to external factors, protecting our self-esteem. A student who passes says it was their hard work (internal); the same student who fails says the exam was unfair (external).
Why attribution matters
Attribution shapes relationships, conflict, prejudice and motivation. Blaming people for outcomes that are really situational fuels unfair judgements and stereotyping, while teaching people to consider situational causes can increase empathy. In the next dot points, biased attributions also help explain prejudice and intergroup conflict.
Exam-style practice questions
Practice questions written in the style of SCSA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
WACE 20225 marksRead the following scenario. A student fails a test and says the questions were unfair, but when a classmate fails the same test the student says the classmate did not study hard enough. Identify the two attributional biases shown and justify your answer.Show worked answer →
A 5 mark scenario-analysis answer needs both biases named and justified from the evidence.
- Self-serving bias
- Blaming the unfair test for one's own failure is an external attribution that protects self-esteem, which is the self-serving bias (we attribute our failures to the situation).
- Fundamental attribution error
- Saying the classmate failed because they did not study is an internal, dispositional attribution about another person, overlooking situational causes, which is the fundamental attribution error.
- Justification
- The contrast (external for self, internal for the other) is the key signal. Markers reward naming each bias and quoting the direction of attribution that identifies it.
WACE 20237 marksDistinguish between internal and external attributions, then explain the fundamental attribution error, the actor-observer bias and the self-serving bias, using an example of each.Show worked answer →
A 7 mark extended response needs the internal-external distinction plus three biases each illustrated.
- Internal versus external
- An internal (dispositional) attribution explains behaviour by the person's personality, ability or effort; an external (situational) attribution explains it by circumstances such as luck or task difficulty.
- Fundamental attribution error
- Overusing internal causes for others' behaviour: assuming a driver who cuts in is rude rather than rushing to hospital.
- Actor-observer bias
- Attributing our own behaviour to the situation but others' to disposition: we trip because the pavement is uneven, but others trip because they are clumsy.
- Self-serving bias
- Crediting our successes internally but blaming failures externally to protect self-esteem: I passed because I worked hard, I failed because the exam was unfair.
Markers reward the clear internal-external definition, three correctly distinguished biases, and an apt example for each.