Dr. Van Offer has proposed a study of a population with Hepatitis C, a blood/liver disease that is transmitted through contact with bodily fluids (sexual contact, sharing needles, etc.)
Since he does not have access to medical records because of confidentiality, how will he "find" this population, i.e. what type of sampling techniques might he use? What is this kind of population called? Give two other examples of this type of population.
What will be an ideal response?
A hidden population is a group that is very difficult to locate and may not want to be found and therefore is difficult to sample. Examples include users of illegal drugs, prostitutes, homosexuals, people with HIV AIDS, homeless people, people with sexually transmitted diseases, etc. Techniques might include purposive or snowball
sampling.
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