In an experiment, which of the following do researchers manipulate?
A. replication group
B. independent variable
C. control group
D. dependent variable
Answer: B
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Provide an appropriate response.Which of the following will not contribute to maintaining a balanced federal budget?
A. Reducing discretionary spending B. Large tax increases C. Increasing Social Security benefits D. Balancing yearly receipts and outlays
Sara contracted rubella (German measles) in the eleventh week of her pregnancy. Emily contracted rubella during the thirtieth week of her pregnancy. The difference in the way rubella would affect an unborn child at these two times is an example of which of the following?
A. continuous change B. discontinuous change C. a critical period D. a sensitive period
What did Jean Piaget call the process by which changes occur in the existing way a child thinks in response to encounters with new stimuli or events?
A. assimilation B. accommodation C. cognition D. schemes
According to both classical and operant conditioning, behavior and learning should be understood only in terms of which types of stimuli?
A. insignificant and external B. observable and external C. significant and internal D. unobservable and internal