Title: Nursing Research: Reading, Using, and Creating Research
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Review Questions

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.


1:  A researcher is very careful to recruit subjects for the sample so that it will represent the population well. This is done to:
A: Maximize selection bias
B: Minimize sampling error
C: Maximize standard error
D: Minimize sampling frame

2:  When subjects elect not to participate or drop out of a study, it can lead to:
A: Sampling bias
B: Snowball sampling
C: Saturation of subjects
D: A heterogeneous sample

3:  Of the following sampling strategies, which is most often used in qualitative research?
A: Cluster sampling
B: Random sampling
C: Convenience sampling
D: Purposive sampling

4:  Of the following sampling strategies, which will result in the least sampling bias?
A: Cluster sampling
B: Random sampling
C: Convenience sampling
D: Purposive sampling

5:  A researcher is studying illicit drug use amongst run-away adolescents. The sampling plan is to rely on referrals from initial subjects to recruit additional subjects. This is an example of:
A: Stratified sampling
B: Systematic sampling
C: Cluster sampling
D: Snowball sampling

6:  What is the main limitation of using a convenience sample?
A: Selection bias
B: Attrition
C: Independence
D: Diffusion

7:  In qualitative studies, sample size is determined by:
A: Power analysis
B: Effect size
C: Saturation
D: Trustworthiness

8:  One way to decrease the risk of a Type II error is:
A: Increase the sample size.
B: Decrease the sample size.
C: Increase the diversity of the sample.
D: Decrease the effect size.

9:  When a study lacks power, which of the following is most likely to occur?
A: Type II error
B: Reduced effect size
C: Type I error
D: Reduced external validity

10:  Study findings that cannot be generalized back to a larger population is said to lack:
A: Power analysis
B: Internal validity
C: Effect size
D: External validity

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