By the time the average American child reaches 3½ years of age, __________ will have used a computer
a) 89%
b) 85%
c) 59%
d) 44%
Answer: c
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If we have calculated a confidence interval and we find that it does NOT include the population mean,
a. we must have done something wrong in collecting data. b. our interval was too wide. c. we made a mistake in calculation. d. this will happen a fixed percentage of the time.
The results of the Loftus study on food aversion suggests:
A. adults are not vulnerable to false memories about food preferences B. food aversions are too complex to be created by false memories C. false memories can change behaviors and preferences D. false memories cannot change behaviors and preferences
According to Piaget, during the concrete operational period:
a. the principle of conservation is mastered b. object permanence develops c. children show evidence of centration when solving problems d. abstract reasoning skills emerge
Forensic psychologists ____
a. ?use psychic powers to help track down criminals b. ?are lawyers who use psychology to help them win their legal cases c. ?conduct research on the interaction between humans and nature d. ?analyze crime statistics and evidence to create criminal profiles