The reason researchers use random assignment in an experiment is to
A) ensure group equivalence.
B) be fair to the participants.
C) be able to influence the results.
D) maximize the chance that they will get results that confirm their hypothesis.
A
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How is the European university system different from the American system?
European students do not receive grades at university, and their tuition is almost always free. || European students have 2 years of general education, then 2 years studying four different disciplines. || European students only attend university for 2 years, whereas American students are in college for 4 years. || European students study in only one discipline area from the time they enter university, rather than beginning with 2 years of general education the way American students do. || || ||
Female masturbation most often centers on stimulation of the
a. clitoris. b. urethra. c. uterus. d. vagina.