Topic: Discussion Reply

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Details: Please reply to these 2 discussion posts and cosmic questions and provide 1 reference and in-text citation that is from years (2016-2021) for each post reply.

Post 1 (Jung):1.
Minimizing bias and decreasing threats to internal validity are important to experimental designs. How will a researcher use the three criteria, manipulation, randomization, and control to minimize bias and decrease threats to internal validity?
Manipulation is comparing different types of treatment by controlling independent variables for the study such as treatment, teaching plan, or medication (LoBiondo-Wood & Haber, 2018). The researcher will use manipulation by not telling a fact to an independent variable such as the purpose of the study or what will be used for research to get an accurate result. Randomization is used by giving a random assignment to an experimental or control group for selection (LoBiondo-Wood & Haber, 2018). In the research, randomization will be used by randomly assign an experiment by not knowing how assignments will be given. Control is the researcher control the situation to limit bias that can affect a dependent variable (LoBiondo-Wood & Haber, 2018). The researcher will control the experiment by providing reasonable sampling for the study, limit the number or eliminate the sample that’s not appropriate for the study.

2. Many times, researchers state that randomized clinical trials (RCT) provide the strongest level of evidence for an individual study when using an evidence-based model.

As a researcher, why do you think this statement is true?
LoBiondo-Wood and Haber (2018) state randomized clinical trials provide more accurate results even conduct the same study multiple times because it used randomization, control, and manipulation to decreases bias or error which might affect the study. I think this statement is true because if the experiment is given under the same circumstance without external or internal factors that will affect the study should have the same result. Since randomized clinical trials using randomization, control, and manipulation to eliminate a bias will be the strongest level of evidence for an individual study.

3. When conducting an experimental design, how will you as a researcher, use intervention fidelity to increase the strength and quality of the evidence provided by the findings of the study?

Intervention fidelity is researcher standardized and delivers the same intervention to each study for constancy in interventions (LoBiondo-Wood & Haber, 2018). To increase the strength and quality of the evidence provided by the findings, the researcher will have a clear guideline and criteria for conducting a study. Therefore, the research study should be conducted under the same condition no matter who is performing to get a more accurate result for each experiment.

4. What is your cosmic question?

(This is a question you ask your peers to respond to based on the chapter discussed in class this week i.e. Quantitative studies).
Do you think quantitative studies are more accurate than qualitative studies since It’s adapting randomized clinical trials for study?

Reference

LoBiondo-Wood, G., & Haber, J. (2018). Nursing research: methods and critical appraisal for evidence-based practice. 9th edition. St. Louis, Missouri: Elsevier.

Post 2 (Lacola):

1. Minimizing bias and decreasing threats to internal validity are important to experimental designs. How will a researcher use the three criteria, manipulation, randomization, and control to minimize bias and decrease threats to internal validity?
The American Heritage Dictionary of the English Language defines an experiment as “A test under controlled conditions that is made to demonstrate a known truth, to examine the validity of a hypothesis, or to determine the efficacy of something previously untried (Company, 2020).” With that, any experiment being conducted must be well designed and be prepared for any outcomes that can occur. Before an experiment can be labeled as a true experiment the researcher will have to meet certain criteria this includes having a control group, being able to manipulate a variable, and have randomization when it comes to the assignments within the study. If these criteria are met should minimize bias in the research study.

2. Many times, researchers state that randomized clinical trials (RCT) provide the strongest level of evidence for an individual study when using an evidence-based model.

As a researcher, why do you think this statement is true?
I believe this statement is true because of the word random. According to Merriam-Webster. (n.d.). defines random as “without definite aim, direction, rule, or method.”. Meaning that all participants of the study have an equal chance of getting into the controlled group or the experimental group. The participants are chosen at random and the researchers do not know who will get picked to go into which part of the study. Many times, using randomized clinical trials eliminates the threat of there being any bias within the study.

3. When conducting an experimental design, how will you as a researcher, use intervention fidelity to increase the strength and quality of the evidence provided by the findings of the study?

If I were the researcher, I would know that if I were to use intervention fidelity as my experimental design layout should increase the quality of the evidence findings of the study because all the participants have to be given the same identical study information. This allows for a better insight into the results. For the study, you must have all the same procedures for all parties involved in the study no matter if it controlled or non-controlled group would allow you to have better findings. This would also allow for the results to be the real focal point of the study. You get to see the results and how they may or may not differ between the participants. Knowing that each participant was given the same material for the study the findings should be of a higher quality because all the factors were the same at the beginning of the study.

4. What is your cosmic question?

(This is a question you ask your peers to respond to based on the chapter discussed in class this week i.e. Quantitative studies).
Do you feel that because you are dealing with larger populations in quantitative research there is more room for errors or corners cut within the research and how could you minimize them?

References:

Deaton, A., & Cartwright, N. (2018). Understanding and misunderstanding randomized controlled trials. Social Science & Medicine, 210, 2–21. https://doi.org/10.1016/j.socscimed.2017.12.005

Merriam-Webster. (n.d.). Random. In Merriam-Webster.com dictionary. Retrieved January 31, 2021, from https://www.merriam-webster.com/dictionary/random

Scientist, A. A. S. N. Research Intervention Fidelity: Tips to Improve Internal… : Clinical Nurse Specialist. LWW. https://journals.lww.com/cns-journal/Citation/2018/01000/Research_Intervention_Fidelity__Tips_to_Improve.4.aspx.

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