Which of the following concepts does the all-or-none law describe?
A. All dendrites must be hyperpolarized before a neuron fires.
B. All neurons in a nerve fire or none of them fires.
C. The size of an action potential does not depend on the amplitude of the stimulus that started it.
D. The frequency at which a neuron fires is independent of the intensity of the stimulus.
Answer: C
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Terror management theory predicts that when people are sensitized to the threat of death, they are least likely to ____
a. ?increase social support from those around them b. ?exhibit increased patriotism c. ?accept the thought of their own mortality d. ?rely on religious faith
Which statement about the harm done by teratogens is true?
A) Passive smoking is rarely harmful to the developing fetus. B) The genetic makeup of the mother and the developing organism plays an important role. C) The negative impact of teratogens is usually reversible. D) The most serious defects occur in the germinal period.
"Why do you always . . . ?" is an example of ____
a. name-calling c. overkill b. a hedge word d. overgeneralization
__________ validity is the assumption that items on a measure adequately represent the
construct. Fill in the blanks with correct word