Week Five Homework: Quasi-Experiments, Single-Case Designs, and Developmental Research

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Week Five Homework: Quasi - Experiments, Single - Case Designs, and Developmental Research 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? When the subject has restriction, single – case experiments are utilized. This kind of design is patterned from the concept of reinforcement. Thus, it is more relevant and useful when the purpose in conducting the research is to determine the effect of experimental manipulation on single research participants (Cozby, 2009). 2. How may a researcher enhance the generalizability of the results of a single case design? To be able to improve the generalizability of the results of a single case design, a researcher is encouraged to replicate the subject versus others. This way, a number of subjects could represent the needed outcome. 3. What is the relationship between quasi - experiments and confounding variables? Provide an example. The most obvious relationship between confounding variables and quasi - experiments is manifested through the way confounding variables show threats to the quasi - experiments. These variables are not independent. It further means that they can co - vary. On the other hand, quasi -
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