Learning path
How to read psychological research
Assess claims through design, magnitude, measurement, and replication. Complete the sequence in order or return whenever curiosity leads elsewhere.
- 01Research methods · 10 min→
Correlation and causation
Correlation describes variables changing together; causation claims that changing one produces change in another.
- 02Research methods · 8 min→
Understanding effect size
Effect size describes the magnitude of a difference or relationship, complementing evidence about uncertainty.
- 03Research methods · 10 min→
Measurement quality
The reliability and validity of observations used to represent a psychological construct.
- 04Research methods · 8 min→
Publication bias
The scientific record can become distorted when some results are more likely to be published than others.
- 05Research methods · 10 min→
Replication and cumulative evidence
Replication examines whether a finding can be observed again under similar or deliberately varied conditions.