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You go to a neurologist because of headaches. You are told that the doctor would like to get some images of your brain and that the procedure involves a technique in which a narrow x-ray beam will be passed through your head. You know a little bit about brain study techniques and realize that the doctor is suggesting a(n)
Large Group
A substantial number of individuals gathered together or categorized for a specific purpose or characteristic.
Subjects
Individuals or groups who participate in research or are the focus of study.
Closed Questions
Questions designed to elicit a specific, limited response, often "yes" or "no," rather than open-ended discussion.
Pre-test
An initial evaluation or examination conducted before a main test or experiment, used to assess suitability, effectiveness, or gather preliminary data.
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