When Lewis smokes, the nicotine from the cigarettes will affect his brain cells by

a. causing more neurotransmitters to be released.
b. prolonging the action of certain neurotransmitters.
c. directly stimulating brain cells through the mimicry of specific neurotransmitters in the brain.
d. filling receptor sites on brain cells and blocking incoming messages.

ANSWER: c

Psychology

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If 12% of the American population is Hispanic, what percentage of a stratified sample would be Hispanic?

a. 6% c. 12% b. 24% d. 88%

Psychology

Which of the following is NOT one of the explanations for why we study attribution errors?

A. to demonstrate that we are mostly unaware of our biases B. to provide insight into why it is acceptable to focus social psychological research on Western cultures C. to provide insight into how we think about ourselves and others D. to demonstrate that people should not always be blamed for their problems

Psychology