Which of the following is NOT a method for trying to prevent a participant characteristic (such as age or gender) from becoming a confounding variable in a between-subjects experiment?
A) Hold the participant characteristic constant.
B) Randomly assign participants to treatment conditions.
C) Randomly select the participants from the population.
D) Match the groups with respect to the participant characteristic.
Answer: C) Randomly select the participants from the population.
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This is an increase in the efficiency of neural transmission at the synapses between neurons
a) depolarization b) short-term potentiation c) long-term potentiation d) episodic arousal
Charmane started smoking when she started college. At first, she found that one cigarette could give her a burst of energy that would keep her going all evening on her homework. But by winter break, Charmane finds that she needs three cigarettes to get that same burst of energy to keep going. Charmane is experiencing
a. impaired control. b. intoxication. c. withdrawal. d. tolerance.