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Conducting an in-depth interview of a single person with a rare illness is an example of

A) a correlational design.
B) an experiment.
C) a survey.
D) a case study.

1 Answer

1 vote
The answer is D- a case study.

It's the same meaning of case as is used in police investigations- "they solved the robbery case". It's one study- or investigation- of something that may happen again.
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User Derek Li
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