Helena is conducting a study for her research methods class. She creates three different versions of a word list to distribute to her undergraduate subjects
After creating the different lists, she shuffles them in a random fashion and then hands the lists, one at a time in the shuffled order, to participants as they enter the lab. This method of assigning subjects to different conditions of an experiment is known as the method of
a. random selection.
b. stratified random assignment.
c. block random assignment.
d. random distribution.
d
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People who suffer from symptoms of premenstrual syndrome and menopause may benefit from which nutraceutical?
a.) Gingko Biloba b.) Melatonin c.) SAM-e d.) Black cohosh
Dan is about to put his left hand in the tub to determine if the water is too hot for bathing his son. Which part of his nervous system will receive input concerning the water temperature?
a) efferent nerves b) the left hemisphere of the brain c) the right hemisphere of the brain d) the autonomic nervous system