Quantitative and qualitative approaches
3 important questions on Quantitative and qualitative approaches
What is the case study method?
The intensive study of a single case with the purpose to shed light on a larger class of cases.
The typical procedure:
The typical procedure:
- note an outcome in the case under exam
- try to ascertain what causal factor acting in the case was responsible for that outcome
- example of qualitative method
What cases may a researcher choose from?
- Typical case: highly representative instance
- Extreme case: may reveal causal relations most strongly
- Crucial case: paradigmatic for a category
- Deviant case: anomaly, may help pinpoint limitations of a theory
- Counterfactual case: ''what if'' scenario that departs from reality, helps isolate contribution of causal factors.
What is the difference between internal- and external validity?
Internal validity is the degree to which a study's findings are warranted for the case studied.
external validity is the degree to which a study's conclusions are generalized.
external validity is the degree to which a study's conclusions are generalized.
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