What was Hunt's "lesson of the cliff"?
a. Look before you leap.
b. He who hesitates is lost.
c. Take it one step at a time.
d. What goes around, comes around.
c
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Larry, age 4, and his friends are sitting at a table playing with cars in a makeshift race, while Rudy stands by the table watching them. Occasionally, Rudy shrieks out for the green car to go faster. This is an example of __________.
A. functional play B. parallel play C. onlooker play D. associative play
Laurence is able to drive his car within a lane since he can clearly see the lines and edge of the road. His nervous system enhances his ability to see edges by ______.
A. an illusion created in the retina called lateral inhibition B. activation of V1 by the cones C. activating his rods and cones simultaneously D. enhancing his ability to see red versus green
When two variables are perfectly correlated, _____
a. one must cause the other, but we don't know which is the cause and which is the effect b. neither one causes the other c. it is certain that a third factor is causing both variables to co-vary d. none of these
Dr. Zielke's research shows that the death of a spouse in old age is correlated with a decline in the surviving partner's physical health. Which of the following conclusions is supported by this study?
A) The death of a spouse causes a decline in the surviving partner's physical health. B) The death of a spouse is related to a decline in the surviving partner's physical health. C) A decline in a surviving partner's physical health can cause the death of a spouse. D) A third variable, such as memory loss, causes a surviving partner's decline in physical health.