Research Methods Revision Sheet

1. 📌 Essentials

• Experiment: study manipulating variables to establish causality.
• Observation: watching behaviors, either passive or active.
• Survey: collecting data via questionnaires or interviews.
• Case Study: in-depth analysis of a single entity over time.
• Sampling: selecting participants to represent a population.
• Correlation: measures relationship strength noation.
• Types of Experiments: field (natural setting), quasi (no randomization), lab (controlled).
• Types of Observation: non-participant, overt, covert, participant.
• Types of Interviews: structured (fixed questions), unstructured (open-ended).
• Sampling Methods: random, stratified, systematic, opportunity, volunteer, snowball, cluster.

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