<span>A study that conducts interviews with mothers of extreme multiple births such a sextuplets is what kind of case study? Case study interviews.</span>
<span>There are many types of case studies, when interviewing people who meet the criteria of being able to give insight to a topic, you are conducing a case study interview. You are interviewing the person or persons' to gain knowledge from their experiences.
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Yes it is the oldest in U. S. history in 1778
