Discussion: Quantitative Research Study

Discussion: Quantitative Research Study

Discussion: Quantitative Research Study


Topic 1: Quantitative Research Design
Using the knowledge and insights gained from the textbook and other reliable sources answer the following.

In your own words, define quantitative research and provide two examples of quantitative designs with a brief explanation of each design.
Identify a potential quantitative research study that is important to nursing and describe which design you would use for this study, why you would use that design, and how the information generated from the study could be applied in nursing practice.
Reflect as to the value of quantitative research adding to the science, knowledge, and practice of nursing.

Unit overview
In this unit, you will have the opportunity to develop seven preliminary questions that you will use to appraise and determine the quality of quantitative evidence. Not all evidence is “created alike.” Determining how to evaluate evidence will help you learn the concepts of validity and reliability, as well learn five common statistical errors in quantitative studies. For example, while the data in the study may be reliable for that particular sample, it may be not be valid to use it for your practice setting. Learning to make these types of decisions from a systematic review will be the focus of this unit.
Relate Elements of Quantitative Study Designs

In this section you will learn how to critically appraise a study design. For example, you will answer important questions such as why the study was done, what the sample size may be, and whether the variables are valid and reliable.
Seven preliminary questions used to evaluate quantitative studies
Using the seven preliminary questions you will learn to ask the following questions of the reviews you conduct:

Why was the study done?
What is the sample size?
Are the measurements valid and reliable?
How was the data analyzed?
Were there any untoward events in the study?
Do the results fit with previous research?
Does the research have specific meaning for clinical practice?
Common Statistical Errors Review

It is important to recognize common statistical errors, such as bias. You will learn how important randomly assigning participants are for study value. An important aspect of systematic reviews is recognizing potential errors and bias in research. If you do not account for this you could accept studies as evidence that have errors in their design.
Principles of Statistical Methods to Participant Sampling

Random assignment of participants is the key to being able to see a cause and effect with an intervention. Without randomization, the results could be biased with a particular group response to the study. That makes it difficult to make a cause and effect relationship. This is the foundation of randomly assigning participants to a study, understanding the difference between a control group and an intervention group.

You must proofread your paper. But do not strictly rely on your computer’s spell-checker and grammar-checker; failure to do so indicates a lack of effort on your part and you can expect your grade to suffer accordingly. Papers with numerous misspelled words and grammatical mistakes will be penalized. Read over your paper – in silence and then aloud – before handing it in and make corrections as necessary. Often it is advantageous to have a friend proofread your paper for obvious errors. Handwritten corrections are preferable to uncorrected mistakes. Use a standard 10 to 12 point (10 to 12 characters per inch) typeface. Smaller or compressed type and papers with small margins or single-spacing are hard to read. It is better to let your essay run over the recommended number of pages than to try to compress it into fewer pages. Likewise, large type, large margins, large indentations, triple-spacing, increased leading (space between lines), increased kerning (space between letters), and any other such attempts at “padding” to increase the length of a paper are unacceptable, wasteful of trees, and will not fool your professor. The paper must be neatly formatted, double-spaced with a one-inch margin on the top, bottom, and sides of each page. When submitting hard copy, be sure to use white paper and print out using dark ink. If it is hard to read your essay, it will also be hard to follow your argument.