It is online quiz, I will give you enough time for review, i will upload the questions without choices( when we formal start the quiz, I can get the questions and choices, questions are same with formal quiz)
I will give you the materials for review.
1.Psychologists conduct experiments in order to study the effects of a(n) _____ variable on a(n) _____variable.
2.Researchers manipulate independent variables by:
3.In a recent experiment, a group of clinically-depressed patients was provided with eight sessions of emotion-focused therapy, while another group of similar patients were put on a waitlist and did not receive treatment until after the study. The two groups were compared to assess whether the therapy was effective. The participants who received the therapy were in the _____ group.
4.An extraneous variable is:
5.Researchers have studied the effects of predictability on stress. In one study,participants experienced a painful stimulus. Half of the participants were able to predict when the pain would occur because they were given a signal beforehand. The other participants were not given a signal, so their pain was unpredictable. Researchers measured and compared participants’ stress levels. In this study, the dependent variable is:
6.Dr. Jones is studying aggression in children. She measures aggression by recording how often children shoot each other with water guns. Her colleagues have critiqued her method, arguing that this is not a good operational definition of aggression. Her colleagues are concerned about the_____ validity of her study.
7.A lot of experiments are conducted in laboratories with undergraduate students in Western countries. These studies have questionable _____ validity, because we may not be able to generalize their results to other people in other cultures in the real world.
8.Internal validity is primarily concerned with which of the following questions?
9.Sometimes, changes in our participants’ behavior are simply due to the passage of time rather than the effects
of an independent variable. This is a threat to internal validity that we call_____ effects.
10. A recent study found that a new drug was effective in treating bipolar disorder. As you read thestudy more closely, you
notice that many of the participants dropped out of the treatment group. Given your understanding of validity, you now know that this study suffers from _____ effects.
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