A child psychologist conducts a study to test whether infants born prematurely begin to walk earlier than do infants in general. Which of the following scenarios represents a Type II error?
A) The psychologist concludes that premature infants do walk earlier than infants in general when the true situation is that they actually do not.
B) The psychologist concludes that premature infants do walk earlier than infants in general when the true situation is that they actually do.
C) The psychologist concludes that premature infants do not walk earlier than infants in general when the true situation is that they actually do.
D) The psychologist concludes that premature infants do not walk earlier than infants in general when the true situation is that they actually do not.
C
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_____ theory proposes that we don't really change our attitudes, but that we report that we have done so to make our behaviors appear consistent with our attitudes
A) Self-perception B) Cognitive dissonance C) Impression management D) Implicit egotism
In the United States, about what percent of 1-year-old infants are able to stand by themselves and take their first step?
a. about 20% b. about 50% c. about 75% d. nearly 100%