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DNP 830 TOPIC 4 DQ 1

Describe a vulnerable population in terms of research. Why is the population considered vulnerable? What other groups might also be considered vulnerable populations

DNP 830 TOPIC 4 DQ 2

Assume you want to do a project that compares the survey results before an intervention to those after an intervention in the same sample (the same people will take both surveys). You plan to use a paired t-test to analyze your results. Using the “Determining the Appropriate Sample Size,” Topic Material, perform a sample size calculation to determine how large your sample should be. Justify your sample size calculation with citations. Discuss how your sample size may affect the validity of your study.

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