What is the current hypothesis about why paralysis occurs during REM sleep?
a. It is a period of rest after a typically very active stage of N3 sleep.
b. It keeps us from acting out our dreams and potentially causing harm.
c. It allows the body to get complete rest, even in the muscles.
d. It helps the body restore resources because fewer resources are used while we are still.
Answer: B
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According to the principles of operant conditioning, what happens when negative reinforcement is applied?
a. behavior increases b. behavior decreases c. behavior is punished d. behavior remains at the same level
Which of the following statements is true about Zola’s third month of pregnancy?
a) she should be able to feel the baby move b) she should avoid regular exercise c) she should be able to hear the heartbeat through a stethoscope d) she should have gained at least 10 pounds since becoming pregnant
Mariella, from the scenario in Chapter 2 of the text, may have developed her depression due to
a. unconscious conflict of emotions. b. conscious conflict of emotions. c. unconscious expression of emotions. d. conscious expression of emotions.
Differential attrition refers to ____
a. differences in one group of participants from another group b. differences in the number of withdrawals among experimental groups c. the spreading of treatment effects from the experimental to the control group d. the demands of the untreated group to receive equal treatment