Which of the following most correctly describes a sign stimulus
a. first causes sensitization, then habituation
b. first causes habituation, then sensitization
c. sufficient for eliciting a modal action pattern
d. similar to an instinct
Answer: c. sufficient for eliciting a modal action pattern
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When testing the means of independent samples, the null hypothesis is best thought of as
a. the mean of population 1 is equal to the mean of population 2. b. the mean of population 1 is unequal to the mean of population 2. c. the mean of a set of difference scores is equal to 0. d. the two population means don't differ by more than 10 points.
A rat will press a response bar hundreds of times if bar pressing results in the administration of cocaine. Apparently, the pleasurable and reinforcing aspects of the drug are due to cocaine's effect on:
a. dopamine b. endorphins c. serotonin d. GABA
The impact of individualism on the discipline of psychology can be seen in its emphasis on ____
a. individual differences in testing b. individual psychotherapy c. both ‘a' and ‘b' d. interdependence
Researchers want to examine whether writing about the experience of breast cancer increases feelings of hope and optimism. Breast-cancer patients were randomly assigned to one of two essay conditions: writing about their breast cancer or writing about
A) ?hope and optimism. B) ?breast cancer diagnosis. C) ?writing about everyday tasks. D) ?the essay conditions.