Dr. Rose conducts a study to determine if caffeine can aid memory. Her three groups of subjects receive a high dose, a low dose, or no caffeine. They all receive identical-looking pills so that they are unaware of how much caffeine they take. In addition, when the researcher tests the memory of each subject, she is not aware of what group each subject is in. This research design utilizes which of the following?
A. random assignment
B. single-blind technique
C. double-blind technique
D. self-selection bias
Answer: C
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The number of adults over 65 in the workforce decreased significantly between 2004 and 2014
a. True b. False Indicate whether the statement is true or false
Kagan's temperament hypothesis attributes responsibility for attachment to
a. the infant's own type of temperament. b. the macrosystem and mesosystem of the community. c. society's gender discrimination against girls. d. the parents' personality traits or defects.
According to your textbook, which of the following was at least partially the result of group think?
A) World War I B) the Oklahoma City bombing C) the Challenger disaster D) Fukushima Daiichi nuclear disaster
Generally, more receptors synapse onto each bipolar cell in the periphery than in the fovea
Indicate whether the statement is true or false.