Helmholtz demonstrated that, contrary to popular opinion, ___________.
a. nervous impulses travel at the speed of light
b. nervous impulses travel at 90 feet/second
c. nervous impulses cannot be measured
d. nervous impulses are the basis of perception and thought
Answer: b) nervous impulses travel at 90 feet/second
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In the strange situation method, a child who keeps playing with building blocks and doesn't make eye contact with their mother when she returns, is demonstrating a(n)
a. avoidant attachment. c. secure attachment. b. ambivalent attachment. d. nonattachment.
If a parent or teacher wished to try scaffolding with a child, what steps should he or she take to provide the most effective scaffolding?
What will be an ideal response?
Since the 1990s, HIV transmission rates among intravenous drug users have been reduced from about 50% to about 10%. According to the text, which of these factors led to this decrease?
A. syringe exchange programs B. sexual abstinence education C. increased Narcotics Anonymous attendance D. decreased use of hormonal contraceptives
If people learn material while under the influence of caffeine, they are more likely to ______
a. forget it when the caffeine wears off b. forget it the next time they are under the influence of caffeine c. remember it when the caffeine wears off d. remember it the next time they are under the influence of caffeine