Which of the following correlation coefficients indicates the strongest relationship between two variables?
A. +.53
B. ?.64
C. ?.38
D. +.29
Answer: B
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A major difference between the ‘tend and befriend' stress response and the responses mediated by the autonomic pathway and the HPA axis is that:
a. the tend and befriend response involves cortisol activity. b. men are more likely to express the tend and be-friend response. c. the tend and befriend response facilitates care for offspring and others in a social group. d. the tend and befriend response is a negative stress reaction, whereas the autonomic pathway and HPa axis responses are positive reactions.
Middle-school-age girls tend to __________; while middle-school-age boys tend to ________
a) play in pairs; develop a dominance hierarchy. b) have a smaller network of friends; ignore differences in status. c) avoid differences in status; have a smaller network of friends. d) focus on one or two "best friends"; smooth over disagreements.
Which statement is true of handedness and hemispheric speech dominance?
A. More than 90 percent of the population shows right-hemisphere dominance for speech. B. Left-hemisphere speech dominance is noted in 50 percent of right-handed people. C. Left-hemisphere speech dominance is noted in 50 percent of ambidextrous people. D. More than 90 percent of the population shows left-hemisphere dominance for speech.
Timbre is the perceived sound differences between sounds with the same pitch but possessing different higher harmonics.
Answer the following statement true (T) or false (F)