Question 1 - You are reading a study about the relationstnp between years of heroin use and risk of future overdose. You notice that the researchers randomly selected their sample in a tertiary care emergency room but did not exclude those who were there for treatment for overdose. You are concerned that recruiting at a site that treats patients who have overdosed may overestimate the risk of overdose with this sampling methodology. This could he an example of: sampling bias as your answer sampling bias sampling error as your answer sampling error increased specificity as your answer increased specificity increased sensitivity as your answer increased sensitivity