NR 505 Week 3: Elements of Quantitative Research: Design and Sampling

Sample Answer for NR 505 Week 3: Elements of Quantitative Research: Design and Sampling Included After Question

NR 505 Week 3: Elements of Quantitative Research: Design and Sampling

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The focus of the Week 3 discussion is on two important elements of quantitative
research studies- design and sampling. The approach or design, quantitative or
qualitative, also applies to EBP projects. Both quantitative and qualitative have different
designs or traditions that fall under these two broad categories.
Select a single-study quantitative research study article related to your specialty track
and provide the permalink to the article. Then discuss each of the following items.
 Identify whether the research study design is
experimental, quasiexperimental, or
nonexperimental. Provide the rationale for your
answer.
 Identify the appropriate representation for the
research study article you selected using the
nomenclature of X for intervention, O for
observation and data collection, and R for random a
assignment to a research study group.
 Identify the type of sampling (probability vs.
nonprobability) that was used in the research study
article you selected.
 Identify one advantage and one disadvantage to the
sampling type used (probability vs. nonprobability).
 Identify whether there was random assignment to
research study groups in the research study article
you have selected.
 If random assignment to groups was used, how
does this strengthen the research study design?

A Sample Answer For the Assignment: NR 505 Week 3: Elements of Quantitative Research: Design and Sampling

Title: NR 505 Week 3: Elements of Quantitative Research: Design and Sampling

Penny Burcham
May 15, 2018May 15 at 1:04pm
Manage Discussion Entry
Instructor and class,
The single quantitative research study article
that I have chosen is an article that discusses;
does aerobic exercise reduce postpartum
depressive symptoms? Throughout this article it
looks at the population of mothers that are one
year or less postpartum and women with
depressive symptoms that are measured by a
questionnaire or diagnostic tool (Pritchett, Daley,
& Jolly, 2017). This particular research study I
would have to say is non experimental because
there is intervention but one does not have
control over whether or not these postpartum
mothers exercise and how much they exercise,
they have to go by what they say they do and the
intensity of their exercise.
Intervention is that there were different trial
groups which included; group exercise
interventions, exercise counseling was provided
and the participant was allowed to choose their
own form of exercise (Pritchett, Daley, & Jolly,
2017). They were aiming to achieve
approximately 30 minutes of moderate exercise
three to five times weekly. The observation/data
collected during this was to see if exercise had an
effect on decreasing depressive symptoms in
postpartum women. The study did find that overall
exercise is an effective treatment for postpartum
depression. The random assignments were of
women whom chose their own exercise that they
did, women that were assigned to groups for
exercise, and other women that received exercise
counseling (Pritchett, Daley, & Jolly, 2017).
When looking at probability vs non-probability
for this article I would have to go with non-
probability for this because this just focuses on
postpartum women, so not all postpartum women
if they are one year of having a baby would not
qualify for this study. Non-probability is when not
every member of the population has the same

chance of being included in the study. This study
focuses on women whom are one year or less
postpartum.
An advantage to using non-probability is the
population being studied is narrowed down to just
mothers whom are one year postpartum. A
disadvantage to this is that postpartum
depression can last past one year of childbirth in
some women. So these women are being
excluded from the study.
A random assignment was used for this study
as women were either in a group, had counseling,
or chose the exercise that they wanted to do. This
can strengthen the study as it narrows down what
area was most effective whether it be exercise in
a group setting, individualized, or the counseling
about exercise.
Pritchett, R. V., Daley, A. J., & Jolly, K. (2017).
Does aerobic exercise reduce postpartum
depressive symptoms? British Journal of General
Practice, 67. https://doi.org/10.3399/bjgp17x6925
25 (Links to an external site.)Links to an external
site.

NR 505 Week 3 Elements of Quantitative Research Design and Sampling

Penny Burcham
o

Kelsey Schroth
Kelsey Schroth
May 19, 2018May 19 at 11:22pm
Manage Discussion Entry
Hi Penny,
Thank you for your informative and interesting
post. While reading it, I had many light bulbs light
up of different ways or many other ways to
conduct this type of research. Today technology
plays a huge role in fitness. A better way that one

could keep track of the actual amount of time
spent doing exercise instead of simply relying on
good faith is having the postpartum mothers wear
a fit bit or some other type of smart watch that
can keep track of data such as exercise, steps,
and heart rate. If I was the one that set up this
research study, I would have improved the EBP

proposal because science has already
established that exercise reduces cortisol and
released endorphins. I would have compared
exercise to pharmacological interventions to
prove which may be more beneficial in the long
run. In addition, for the sample that is used, I feel
that the guidelines need to be more specific
because from just after delivery to one year a lot
can change and some women cannot begin
physical activity right away due to c-sections
which may put those women at a disadvantage.
Thank you
Kelsey Schroth

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