Genetic mutations involve __________.
A. adverse neural development caused by drug ingestion in adulthood
B. accidental changes in the chromosomes of sperms or eggs
C. poor adaptation to the environment
D. improved reproductive success
Answer: B
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Researchers scanned the brains of infants longitudinally as they slept. They found that areas growing the most rapidly in the first year were those that control __________.
A. visual and language abilities B. memory abilities C. spatial problem-solving D. higher order decision making
Which of the types of children identified in peer sociometric studies is most likely to develop an externalizing disorder?
a. average b. rejected c. neglected d. controversial
The results from a two-factor ANOVA show no main effect for factor A but a significant interaction. What can you conclude based on this pattern of results? a. Factor A has no effect on the participants' scores
b. Factor A may have an effect but, if so, it depends on the levels of factor B. c. Because the interaction is significant, factor A must also have an effect. d. The effect of factor A is constant across all levels of factor B.
Ivan, a teacher, spends most of his time working with male students because he believes that they have the best chance of being admitted into the advanced program. As a result, the male students perform better and are admitted more often than females. This example illustrates
A. a self-fulfilling prophecy. B. a self-serving bias hypothesis. C. prejudice without discrimination. D. the contact hypothesis.