A case study involves a detailed, qualitative investigation into a particular case or small group, often in their natural environment, to understand their behaviors, experiences, or interactions.
Quantitative research methods aim to gather numerical data that can be analyzed statistically to identify patterns, relationships, and trends in social phenomena.
The control group in an experiment does not receive the experimental treatment or intervention, allowing researchers to compare outcomes with those who do receive the treatment (the experimental group).
Qualitative research focuses on exploring social phenomena from a deeper, contextual perspective, emphasizing individual experiences, meanings, and interactions within a given social setting.
A random sample ensures that all individuals in the population have an equal chance of being selected, reducing bias and increasing the generalizability of the research findings.