A group of researchers wanted to determine whether animals would be slower in learning a maze when they had been exposed to a particular drug. Half the animals received low doses of the drug, and the other half did not receive the drug. In this study, the experimental group is:
a. the animals who did not receive the drug
b. the animals who ran the maze the fastest
c. the animals who received the low doses of the drug
d. all the animals who took part in the study
C
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In humans, testosterone produces its organizing effects on the hypothalamus by itself
a. True b. False Indicate whether the statement is true or false
_____ excite the central nervous system, resulting in heightened arousal and activity levels.
A) Depressants B) Sedatives C) Stimulants D) Carcinogens
As elementary-school-age children begin to participate more in group activities, it becomes evident that they have a clear preference for
a. parallel play. c. same-sex interactions. b. interactions with teachers. d. opposite-sex interactions.
Suppose you want to draw some psychological conclusions in a way that is consistent with the scientific aspect of psychology. You should base your conclusions on
a. the beliefs held by most people. b. the fundamental notion of common sense. c. your personal feelings or intuitions, but only if they are reasonable. d. evidence collected according to the principles of the scientific method.