A psychologist wants to determine the criterion-related validity of an intelligence test by determining how well it predicts a student's placement in a special class. If the psychologist used the intelligence test for both diagnosis and special class placement, that criterion would be said to be
A. invalid.
B. negatively skewed.
C. irrelevant.
D. contaminated.
Answer: D
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From the perspective of evolutionary psychology, __________ selection improves inclusive fitness through increased access to mates and mating
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Allport took a(n) _____ stance on the question of free will versus determinism
a. extreme c. moderate b. fatalistic d. radical
Researchers dropped 100 unsealed envelopes containing money around the campus of a Swedish university. Half the letters were addressed to a person with a common Swedish surname (A. Andersson), whereas the other half of the letters were addressed to a person with a common Muslim surname (A. Abdullah). The researchers found that ____
a. more than half of the envelopes with a Swedish surname were returned while slightly over one-third of those with a Muslim surname were b. nearly all of the envelopes were returned, regardless of the surname c. almost none of the envelopes were returned, regardless of the surname d. nearly all of the envelopes with a Swedish surname were returned, while slightly over half of those with a Muslim surname were
The relative refractory period occurs because
A. the cell is hyperpolarized, requiring a larger than normal stimulus in order to form another action potential. B. it takes time for the sodium-potassium pumps to return ion concentrations to the normal resting state. C. only one action potential at a time can travel the length of an axon. D. sodium channels cannot reopen until the cell regains its resting potential.