Research presented in this chapter demonstrated that the more a group expresses racist attitudes, the worse their health. This demonstrates a ________ correlation
a. positive
b. negative
c. neutral
d. zero
Answer: B
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Which of the following is true for neurotransmitters' receptors? a. All the excitatory neurotransmitters attach to one type of receptor, and inhibitory neurotransmitters to another type. b. A neurotransmitter can attach to several types of receptors with different properties
c. The brain has only one type of receptor, but it responds differently depending on which neurotransmitter attaches to it. d. Men's neurotransmitter receptors are chemically different from those of women.
Experiments require all of the following except
a. equal treatment of participants aside from the manipulation of the independent variable. b. control over experimental procedures. c. manipulation of an independent variable. d. that the research be conducted in a tightly controlled laboratory environment.
Children's "increasing ability to regulate themselves, to take responsibility, and to exercise self-control" all contribute to their sense of
A. conservation. B. peer values. C. autonomy. D. negocentrism.
When an action potential reaches the end of the axon terminal:
a. the action potential "hops" directly across the synaptic cleft. b. it electrically activates the receptor sites. c. it causes synaptic vesicles to release neurotransmitters. d. it reverses direction.