Multiple Choice
To test for age differences in intelligence,at the beginning of the school year a researcher gave the same mathematics test to groups of children who were 8,10,12,and 14 years of age.This procedure best illustrates a
A) scatterplot.
B) longitudinal study.
C) standard deviation.
D) cross-sectional study.
Correct Answer:

Verified
Correct Answer:
Verified
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