Smoking cigarettes and having lung cancer are highly correlated events, and people often logically conclude that smoking must cause the cancer. It is hypothetically possible, however, that having lung cancer causes one to crave nicotine and thus it leads to smoking. This example illustrates the issue of
a. the third variable.
b. a reversed cause-effect relationship.
c. time of measurement effects.
d. plasticity.
b
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Persisting LSD flashbacks can be treated by ____________
a. mescaline b. benzodiazepines c. dopamine d. any cholinergic hallucinogen
When tested with the candle problem presented in your textbook, five-year-old children showed no signs of functional fixedness because compared to adults, the children
a. could visualize the problem better. b. could physically manipulate the objects with more dexterity. c. had less experience with the uses of the various objects. d. had more experience with the uses of the various objects.
Typically, boys are _____ than girls.
Since 2006, Facebook has been open to anyone over age ____
a. 11 c. 13 b. 12 d. 14