Studies of group differences in performance on IQ tests indicate that African American children typically scored ________ lower than Caucasian children, but that difference has diminished significantly in the last thirty years.
a. 30 points c. 7 points
b. 15 points d. 5 points
Question 2
One advantage of naturalistic observation is that
a. this type of research never violates ethical guidelines.
b. researchers can see the events and behaviors that precede the target behaviors they are recording.
c. researchers can directly manipulate variables of interest.
d. the researcher can determine cause-and-effect relationships between variables of interest.
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