Exam 3: Research Design: the Experimental Model and Its Variations

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Experimental treatments having different or opposite effects on different kinds of subjects are called:

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_________________ designs involve studies of one group at one time.

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Describe the Prove Experiment and its major conclusion regarding community based treatment.

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Rival causal factors are any variables other than the treatment variable which may be responsible for the relationship.

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Which of the following was not identified as an advantage of experiments?

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The classic experimental design involves:

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_________________ designs involve measuring a single variable at successive points in time.

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The Omaha replication of the Minneapolis Domestic Violence Experiment confirmed that arrest had a greater impact on preventing domestic violence than did mediation or separation.

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The classic experimental design is viewed as the purest of research designs.

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Selection bias occurs when the researcher chooses nonequiva lent groups for comparison.

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A placebo is a fake treatment administered to the study group in order to shroud the real treatment.

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_________________ occurs when members of the control group find out about and request the same treatment as the experimental group.

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The experimental model is one of the most powerful means of controlling for rival causal factors before the fact through the design of research.

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Which describes the type of treatment given to a control group in an experiment?

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The Solomon four group design is viewed as the purest of research design.

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Discuss the classic experimental design, its major features, and give an example of its application.

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In the diffusion of treatment effect neither the experi menters nor the subjects are aware of what group is the treatment group.

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If one variable precedes another in time, it is the cause of that outcome.

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_________________ point to the tendency of pretests to destroy the naïveté of respondents with respect to the study's purpose.

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_________________ of treatment occurs when the control group learns about and imitates the experimental group.

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