What you'll learn
Both experimental and non-experimental research methods.
Key ideas
- The IV and DV; a testable hypothesis.
- Experiment types: laboratory and field.
- Non-experimental: observations, correlations and case studies.
- Sampling: random and opportunity.
Exam tips
- Remember correlation is not causation.
- Weigh each method's strengths and weaknesses.
Common mistakes
- Confusing the IV and DV.
- Claiming correlation proves cause.