Sampling, research methods and statistical interpretation

What this note covers

1. Choose a sampling method and define the target population
2. Compare experiments, case studies, observations and self-report
3. Distinguish qualitative and quantitative evidence
4. Calculate means and percentages with the right denominator
5. Interpret correlation without converting it into causation
6. Evaluate reliability, validity and generalisation separately

6 sections · 10 key terms & formulas · 6 common mistakes