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A Photoplethysmograph Refers to A(n)

Question 26

Multiple Choice

A photoplethysmograph refers to a(n)


A) device used to measure psychological arousal in men and women.
B) acrylic cylinder placed in the vagina to measure physiological sexual arousal.
C) instrument used to measure an erection.
D) camera used in sex research because of its unique ability to capture images in the dark.

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