NURS 350 quantitative research designs used in nursing practice

NURS 350 quantitative research designs used in nursing practice
NURS 350 quantitative research designs used in nursing practice
 
DQ1 Describe quantitative research designs that are used to support changes in nursing practice. Choose one and explain why you chose it. Give an example of how this research design is used to drive change in nursing practices.
DQ2 What is the difference between statistical significance and clinical significance? Explain why statistically significant results in a study do not always mean that the study is clinically significant. Provide an example.
NURS 350 quantitative research designs
A design is the blueprint for conducting a study that maximizes control over factors that could interfere with the validity of the findings. A research design gives you greater control and thus improves the validity of your study. To select an appropriate research design, you will need to integrate many elements. Chapter 10 began with questions that will help you select a design or identify by name the design of a study you are critically appraising. Identifying the design of a published study is not always easy, because many published studies do not identify the design used. Determining the design may require you to put together bits of information from various parts of the research report.
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This chapter describes the designs most commonly used in nursing research, using the study categories described in Chapter 3: descriptive, correlational, quasi-experimental, and experimental. Descriptive and correlational designs examine variables in natural environments, such as home, and do not include researcher-designed treatments or interventions. Quasi-experimental and experimental designs examine the effects of an intervention by comparing differences between groups that have received the intervention and those that have not received the intervention. As you review each design, note the threats to validity that are controlled by the design, keeping in mind that uncontrolled threats in the design you choose may weaken the validity of your study. Box 11-1 lists the designs discussed in this chapter. Each of the designs is briefly described, and a model is provided so you can see the different elements of the designs. After the descriptions of the designs, we provide a series of decision trees or algorithms that will help you to select the appropriate design for your study or to identify the design used in a published study.
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