During the past century and a half, the average age of menarche in the United States has plummeted. This is an example of
a. proximodistal growth.
b. cephalocaudal growth.
c. a secular trend in development.
d. the effects of excessive estrogen.
c
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A population with ยต = 85 and ? = 12 is transformed into z-scores. After the transformation, what is the standard deviation for the population of z-scores?
a. ? = 12 b. ? = 1.00 c. ? = 0 d. Cannot be determined from the information given
fMRI is to ____ as MRI is to ____.
A. structure; function B. function; structure C. organization; function D. x-ray; gamma ray
Which statement is an example of an upward counterfactual?
A. If the traffic wasn't so heavy, I wouldn't have missed the ferry. B. If I had taken the ferry, I wouldn't have arrived much faster than using the bridge. C. If I had taken the ferry, I would have been seasick. D. If the ferry broke down, I would have been stranded.
Which of the following presents a reasonable solution to the problem of carryover effects in repeated measures factorial designs?
a. debrief participants carefully b. inform participants in advance that they should not compare treatments c. use a between subjects design d. do both a and b