Week Five Homework Exercise PSYCH/610 Version 1 1 University of Phoenix Material Anne Jinner Week Five Homework Exercise Answer the following questions, covering material from Ch. 11 of the Methods in Behavioral Research text: 1. What are single-case designs and when are they most useful? Single case designs are used when trying to determine a single case study and a single research participant (Cozby, 2009). These types of designs are most used in clinical, counseling, and educational settings because the behavior is measured and manipulated over a period of time (Cozby, 2009). 2. How may a researcher enhance the generalizability of the results of a single case design? When repeating the same design with other subjects, the generalizability of the design can be improved because this shows that other subjects may have the same or similar results (Cozby, 2009). 3. What is the relationship between quasi-experiments and confounding variables? Provide an example Quasi-experiments are often self-selected instead of randomly selected. It is much easier to control the possibility of confounding variables when the subjects are randomly selected (Cozby, 2009). An example of a quasi-experiment with confounding variables is trying to determine the type of punishment for a child. If the household believes in corporal punishment and the other does not, this could cause a confounding variable in the study. 4. Provide examples of: one-group posttest designs and one-group pretest and posttest
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