Sociology / Unit 2 Soc 0146 short lesson, about 20 seconds
The Literature Review
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The idea
A literature review surveys the research already published on a question, establishing what is known, what is disputed, and what has not been asked.
In practice
A researcher planning a study of vaccine hesitancy reads the existing surveys first and finds most sampled only urban parents.
Where people slip
Reading only studies that agree with the hypothesis is how a review gets done and wasted.
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