If variables X and Yare correlated, then which of the following is a possibility?
a. X causes Y.
b. Y causes X.
c. X and Y may be caused by a third variable, Z.
d. All the above are possibilities.
D
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Terrell volunteers his time to campaign for Joel Goodman. He spent all afternoon putting up "Goodman for Congress" signs around his town and arrived back at headquarters just in time to watch the Goodman- Hernandez debate on TV. Terrell was eager to watch the candidates debate each other, even though he was 100 percent sure he was going to vote for Goodman. Terrell's first response to the debate will most likely be
A. "I noticed that Goodman and Hernandez agreed on the new environmental policy." B. "Goodman answered the question on job creation very well." C. "I wonder why Goodman was vague on the school tax issue when I know he has a clear idea about that." D. "Hernandez is really going to make this a tight race."
The alarm reaction that activates during potentially life-threatening emergencies is called the _____.
A. bipolar disorder B. emotional disorders C. mood disorders D. fight response
Specific training of infant motor skills:
a. leads to superior motor performance throughout life. b. may accelerate some motor skills but only slightly. c. can actually slow down motor development in the long run. d. is proven to have no affect whatsoever on motor development.
Tunnel vision involves damage to the
a. rods in the periphery of the eye. b. cones in the fovea. c. optic nerve. d. eye muscles that focus the lens.