Henrietta is interested in the central tendency of her participants’ heights. She knows she has two extreme scores (a 7'1'' man and a 6'10'' man). Her best choice for a measure of the central tendency would be the ______.
A. mode
B. variance
C. median
D. mean
Ans: C
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You believe that short men have a tendency to be insecure. The concept of illusory correlation implies that you will
a. overestimate the frequency of insecure short men. b. underestimate the frequency of insecure short men. c. accurately estimate the frequency of insecure short men. d. falsely assume that tall men are naturally secure.
Undergraduate student Gabrielle is writing a research paper on the physiological effects of commonly used drugs, such as caffeine. As her well-informed friend, you tell Gabrielle that caffeine is known to ____
a. ?block dopamine uptake in the brain b. ?stimulate the ventral tegmental area in the brain c. ?interfere with adenosine-induced inhibition in the brain d. ?upregulate serotonin levels and receptors in the brain
Explain the effects of physical touch on stress reactions.
What will be an ideal response?
Which structure in the brain has often been called the "gateway to memory"?
a. amygdala b. thalamus c. hippocampus d. cerebrum