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Wk 8 Homework Exercise

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Week Eight Homework Exercise

PSYCH/610
February 29, 2016
Dr. Christa Washington
University of Phoenix

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Week Eight Homework Exercise

Answer the following questions covering material from Ch. 14 of Methods in Behavioral Research:

1. What is replication, and what role does it play in increasing the external validity or generalizability of a study? In what way is the IRB involved in using participants in a research study? Replication is a way that researchers ensure that their findings are valid. In order to do this they use replication, which is a completion of the study again using different participants. According to Cozby (22009), is a means to overcome any kind of generalization problems that occur in a study. The institutional review board (IRB) plays the role of ensuring that all human subject research is 554conducted in accordance with all federal, institutional, and ethical guidelines. CORRECT 2. What are the advantages and disadvantages of using college students as participants in research studies? Cozby (2009) states that the advantages of using college students as participants in research studies is that they possess high cognitive skills and know how to win approval from authorities. The disadvantages of using college students as participants in research studies is that they are young, have characteristics of teenagers, and are still developing socially, requiring peer approval. CORRECT

3. What potential problems can arise from generalization of results to different cultures or ethnic groups? Different races or ethnicities should not be assigned to different experiment groups. This could alter the results of the experiment. Cozby (2009), states that in certain tests and instances, different cultures may respond differently to different environments. While

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