Although it is possible to obtain a sample with characteristics that are very different from the population through random sampling, it is more likely that a nonrepresentative sample is the result of ____.
a. simple random sampling
b. selection bias
c. stratified selection
d. systematic selection
Question 2
Carlos decides to focus on individuals who are at high risk of becoming homeless, specifically, individuals with severe, persistent mental illness who are being released from state hospitals. He is extremely careful, in his consent materials, to be clear that people do not have to participate, that their decision to participate or not participate will in no way impact their treatment at the hospital or thereafter, and that, even if they agree to participate, they can withdraw their consent without penalty. In terms of the Belmont Report's conceptualization of informed consent, Carlos is addressing ____.
a. assent
b. comprehension
c. information
d. voluntariness
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