Buchanan, Tranel, and Kirschbaum (2009) Compared Three Groups of Participants

question 28

Multiple Choice

Buchanan, Tranel, and Kirschbaum (2009) compared three groups of participants, one of which had damage to the hippocampus, one that had similar brain damage but not to the hippocampus, and a control group of participants. The researchers assessed responses to the three groups both before and after they were exposed to stress. The hippocampus group showed less change in cortisol response to stress than the other two groups. What research design was used in this research?

• A) Between-participants experimental.
• B) Within-participants experimental.
• C) Comparison group before-after.
• D) Time series..

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