NURSING 439 CHAMBERLAIN
COLLEGE OF NURSING -
DISCUSSION WEEK 3
Week 3: Research Problems, Designs, and
Sample
This week, we will discuss the research design and sample for your nursing clinical
issue. The research
...
NURSING 439 CHAMBERLAIN
COLLEGE OF NURSING -
DISCUSSION WEEK 3
Week 3: Research Problems, Designs, and
Sample
This week, we will discuss the research design and sample for your nursing clinical
issue. The research design flows from the research question and outlines the plan for
the study that will answer the research question. The design identifies the major
components of the study. It is important to remember that there is no one best design
for a research study.
1. After you review the designs, describe which research design you would expect to find
when searching for evidence relevant to your own research question from Week 2.
Why? Explain your answer.
2. The most common sampling method is the convenience sample; therefore, many of
the studies that you find for evidence use this sampling method. What are the
implications for using a convenience sample on the way you interpret and use the
findings?
"A research design is an outline of the study, in both a macro sense and a micro sense" (Houser,
2018, pg. 133). The bases of a design are the demands of the research questions, along with a
sampling plan and the measurements. Research design is the way to make sure you integrate all
components of the study in a logical way making sure that the research problem is successfully
reached. "Some design flaws may have little impact on the studies outcome; others may fatally
affect the credibility of the results"• (Houser, 2018, pg. 135).
Week Two PICOT Question:
Adults in the Emergency Department that present with pain, how would RN initiated STAT
analgesic orders protocol compare to waiting for physician analgesic orders, help reduce
patient pain and improve patient satisfaction scores in the Emergency Department?
"A clear definition of the concepts that will be studied guides the design of the study and the
subsequent measurement strategy"• (Houser, 2018, pg.137). When looking at my PICOT
Questions from week two, I believe a comparative effectiveness design such as Observational
would work best. This design is described as a "Population of interest assigned to alternative
interventions based on the patient, provider, and system factors and observed for the outcome ofinterest"• (Houser, 2018, pg. 147). When looking at the question, we are observing patients in
the Emergency Departments when they receive RN initiated analgesics compared to waiting for
physician's assessments and orders. When are observing the patient outcome by seeing if their
pain is relieved sooner and if the Emergency Departments satisfactory scores increase. This
design would prove to be very effective for this study, but is subject to selection bias and
measurement errors.
As we learned in this week's lesson, convenience sampling is the most common sampling
method used in studies. By convenience sampling it means that the sample used for the research
is easily accessible to the researchers. Though this form of sampling as many advantages, it has
potential for selection bias. This form of sampling is not only used because it is convenient, but
it also allows the researcher to collect data without dealing with a randomized sample.
Chamberlain University. (2017). RN-Evidence-Based Practice: NR-439: Week Two Lesson Two
Dewhirst, S., Zhao, Y., MacKenzie, T., Cwinn, A., & Vaillancourt, C. (2017). Evaluating a
medical directive for nurse-initiated analgesia in the Emergency Department. International
Emergency Nursing, doi:10.1016/j.ienj.2017.05.005
Houser, J. (2018). Nursing research: Reading, using, and creating evidence (4thed.) Sudbury,
MA: Jones and Bartlett
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