Research Methods for the Health Sciences Essay Help Online-Module 4

Research Methods for the Health Sciences Essay Help Online-Module 4

Module 4 – Case

Types of Variables

Case Assignment

A researcher wishes to operationalize her study variables in the following manner. How might she go about doing so? Summarize your responses in tabular form (see example below), and supplement your table with a supporting narrative.

• Age (continuous)
• Gender (dichotomous)
• Ethnicity (categorical)
• Education (ordinal)
• Income (continuous)
• Marital status (categorical)
• Weight (continuous)
• Blood pressure (continuous)
• Hypertension (dichotomous)
• Body temperature (continuous)
• Health insurance status (categorical)
• Smoking status (dichotomous)
• Cancer Stage (ordinal)

EXAMPLE:

Variable: Name	Type	How operationalized	How measured
Age Etc.	continuous	Age in years	How old were you on your last birthday?

Narrative: When age is operationalized in this manner, one would merely need to query the respondent to determine the age she turned on her last birthday. Alternatively, the researcher could ask the respondent to provide his birth date and year, and then calculate age at a later time.

Assignment Expectations

• You are expected to incorporate relevant background readings into your responses.
• Your paper should be written in your own words. This will enable me to assess your level of understanding.
• In order to earn full credit, you must clearly show that you have read ALL required background materials.
• Be sure to cite your references in the text of all papers and on the reference list at theend. For examples, look at the way the references are listed in the modules and on the background reading list.
• Proofread your paper to be sure grammar and punctuation are correct and that each part of the assignment has been address clearly and completely.

Length: 2-3 pages typed, double-spaced.

Module 4 – SLP

Types of Variables

Once a research hypothesis is formulated, the researcher must decide upon an appropriate study design to test that hypothesis. In doing so, she must take into consideration the extent to which that design will optimize the internal validity of her study findings (refer again the discussion of internal validity in Module 2). Also to be considered are the practical factors that may facilitate or inhibit implementation of particular study designs, e.g., limited access to one’s target population over time due to transiency among prospective research subjects may preclude adoption of a cohort study design.

Your Task for this Assignment

With the aforementioned factors in mind, identify a study design (experimental or observational) that would be appropriate to test your study’s research hypothesis, and address the following questions in a three-page essay:

1. What are the components of this design?
2. Would this design be considered experimental or observational? Why?
3. Why did you choose this design over others? Be sure to note all advantages and disadvantages of employing this design to address your particular research question.
4. To what types of bias is this design most vulnerable? Please explain.

SLP Assignment Expectations

• You are expected to consult the scholarly literature in preparing your paper; you are also expected to incorporate relevant background readings.
• Your paper should be written in your own words. This will enable me to assess your level of understanding.
• In order to earn full credit, you must clearly show that you have read ALL required background materials.
• Be sure to cite your references in the text of all papers and on the reference list at the end. For examples, look at the way the references are listed in the modules and on the background reading list.
• Proofread your paper to be sure grammar and punctuation are correct and that each part of the assignment has been address clearly and completely.

Length: 3 pages typed, double-spaced.

Note: Wikipedia is not an acceptable source of information.

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