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Anonymous Survey
A survey in which the identities of the respondents are not known to the researchers, ensuring privacy and encouraging honest answers.
Case-control Study
An observational study design in which two groups differing in outcome are identified and compared on the basis of some supposed causal attribute.
Outcome Variable
The variable being measured or tested in an experiment or study to assess the effects of treatment or exposure.
Observational Epidemiological
The study of diseases within populations without manipulating the environment, observing the natural occurrence of health outcomes.
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