Psychology › Section B · Psychological research › Topic B.3
Analyzing findings: correlation and experiments
Children with bigger feet read better - but feet do not teach reading. This topic shows how psychology's data become knowledge: what correlations can and cannot say, how experiments earn the word "cause," and how the field checks itself through peer review, replication, reliability and validity.
In this topic
- The correlation coefficient
- Correlation is not causation
- Illusory correlations and confirmation bias
- Designing an experiment
- Random sampling and random assignment
- Placebos and blind designs
- Worked example: questions experiments cannot ask
- Worked example: designing a study-method experiment
- Peer review and replication
- Reliability and validity
- Common mistakes to avoid
- Key takeaways
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