From the standpoint of experimental research, personality differences are thought of as _______.
a. noise
b. uncontrolled error variance
c. both of the above
d. neither of the above
c. both of the above
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Prenatal exposure to lead
a. is associated with lower intelligence scores in childhood. b. is associated with low birth weight in babies. c. causes abnormal organ growth in the developing fetus. d. causes permanent brain damage in the developing fetus.
In a study of teens who played Wii tennis against a competitor, the number of calories expended during the exercise was ____________________
a. less than that expended playing tennis on a court b. similar to that expended playing tennis on a court c. greater than that expended playing tennis on a court d. insufficient to be relevant to fitness or health
Although any continuous variable can be used as a covariate, a(n) _______________ is usually best
Fill in the blank(s) with correct word
Prolonged exposure to toxins during the fetal stage tends to cause growth retardation and
A) higher IQ. B) lower IQ. C) has no effect on IQ. D) the effects are unknown