Answer the following statements true (T) or false (F)
1 When an independent variable is manipulated, at least two groups are created
2 The dependent variable is manipulated by the experimenter
3 An experimental group should be identical to a control group in every way except one: the manipulation of the independent variable
4 A common strategy in experimentation is to allow participants to choose if they would like to be studied in the experimental group or the control group
5 Self-selection by participants to experimental conditions is an effective way of eliminating the third-variable problem
1 True
2 False
3 True
4 False
5 False
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When Lani has an unpleasant task to complete, such as writing a term paper, she sets up rewards for herself. When she completes her outline, she watches TV for one hour. When she completes the rough draft, she spends an evening relaxing with her friends. When she finishes the final draft, she goes to the mall and purchases a CD she has been wanting. Lani's behavior is best explained by the
____.? a. ?instinct doctrine b. ?arousal theory c. ?drive reduction theory d. ?incentive theory
Some SIDS victims have abnormalities in which part of the brain?
a. The frontal cortex b. The hippocampus c. The arculate nucleus d. The occipital lobe
Nhu and Joseph are chasing each other around the park and wrestling in the grass. This form of play is called:
a. aggressive play. c. large muscle skill play. b. cooperative play. d. rough-and-tumble play.
Mila has been diagnosed with dysthymia, so she joins a support group of women. The group meets weekly without a trained counselor to lead it. Mila says that the women primarily share their feelings about the events of the week. She knows social support is useful for people with mental health disorders, but she is thinking about quitting. Which one of the following responses is the most accurate and helpful?
A. Because the group doesn't have a trained leader, nobody will be able to recognize or correct any cognitive distortions. B. Because the discussion isn't focused on ways to address the disorder, it probably won't help reduce Mila's symptoms. C. Because Mila has dysthymia, her symptoms are probably linked to unresolved childhood issues, so she needs to see a psychoanalyst if she really wants to get better. D. Because Mila has dysthymia, her symptoms are mild enough that the social support from the group members will help eliminate them, if she gives it time.