Dr. V wanted to test her hypothesis that sugar improves memory, so she gave one group of participants candy sweetened with sugar and another group candy sweetened with NutraSweet. Then she compared the performance of the two groups on a test of recognition memory. Dr. V's research method is ____.?

a. ?dependent
b. ?experimental
c. ?descriptive
d. ?naturalistic

ANSWER:
b

Psychology

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Freud's stages are _________

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Each year in the United States, ______ infants suffer from disorders that could have been detected at birth with appropriate screening

a) 500 b) 1,500 c) 2,000 d) 1,000

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