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Author Question: A nurse researcher should be particularly concerned about having a small sample size for which ... (Read 70 times)

fbq8i

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on: Jul 8, 2018
A nurse researcher should be particularly concerned about having a small sample size for which reason?
 
  a. There is increased risk of obtaining a nonrepresentative sample.
  b. There is increased risk of a study subject interacting with another study subject.
  c. There is increased potential for loss of confidentiality.
  d. There is increased regression toward the mean.

Question 2

A nurse researcher can most accurately use the technique of power analysis to do what?
 
  a. To estimate sample size
  b. To establish sampling strata
  c. To assign subjects randomly
  d. To analyze sample representativeness


nixon_s

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Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: A

Feedback
A Small sample sizes tend to increase the risk of a sample being nonrepresentative.
B Study subject interaction can occur, whatever the sample size.
C Confidentiality loss can affect large or small samples.
D Regression toward the mean is not generated by sample size.

Answer to Question 2

ANS: A

Feedback
A Power analysis is a statistical procedure used to estimate needed sample size.
B Sampling strata would be determined by knowledge of population strata.
C A table of random numbers (or a computer program) can be used to assign subjects randomly.
D Sample representativeness is not determined by power analysis.


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fbq8i

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Reply #2 on: Jul 8, 2018
Thank you


nixon_s

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Reply #3 on: Jul 8, 2018
No problemo


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