For this assignment, you will be assigned an article from the peer-reviewed literature that describes an epidemiological study. You will use that article to complete a Critically Assessed Study Article FORM, in which you will provide a summary of the study by explaining the following:
- Study purpose (This should be a full sentence. Remember, anytime you use the authors’ words, you must use quotation marks.)
- Study design (What study design that is the focus of this exercise??)
- Describe the source of the data and the study sample
- Primary measure (Sometimes there will be more than 1 primary measure. However, for the purposes of this assignment, choose just the one that you believe is most important and explain why you made that choice. Remember that for our purposes, a measure is the construct (such as glycemic control, or depression, or tuberculosis) that we are measuring, NOT the instrument (such as a PDQ-9) or lab test (such as the HbA1C test) used to measure it.)
- Statistical Test used for the primary measure (It should be Odds Ratio). (If it is something else, then you need to contact your instructor.)
- Complete the 2×2 table using only the data from the study for the primary measure you were assigned. You will insert the appropriate numbers into the 2×2 table that was used in the study to arrive at the crude (unadjusted) OR reported. (The 2×2 table can be found in the 9th chapter of the textbook, page 254.)
- Calculation of the crude (unadjusted) OR. You will put the numbers from the 2×2 table you constructed into the OR formula to show how the resulting OR was derived. (This formula can be found in the 9th chapter of the textbook on page 253.) All of the articles that were chosen for this assignment were chosen because they do report the crude (unadjusted) OR for your assigned variables somewhere in the article so you are able to check your table and calculations to ensure that you have come up with the correct number.
- Interpretation of the measure of association for this study. You will explain how the above measure of association is interpreted for this study. The textbook helps you understand how to interpret the OR results.
- Discussion of the advantages of using case-control designs. (You can get this from your book.)
- Discussion of the limitations of using case-control designs. (You can get this from your book.)
- Discussion of bias (information and selection biases) and confounding for this particular study. (See example provided.)
- Description of any methods used in the study for minimizing bias and confounding, or methods that could have been used, but weren’t. (See example provided.)
There is an example article and completed form available to you in the Case Study module. You must examine that as a model for the one you will complete for your assigned article. Using this model is the best way for you to understand what is expected of your for this assignment.
IMPORTANT NOTES
2. As you know, your scores on your competencies do not impact your grades. However, your grades can impact the scoring on you competencies. Below is the criteria being used to score your L3. Analytical Thinking competency:
My criteria for awarding a “1”: I use your Individual Epidemiology Case Study and your Group Term Project scores – if you score at least a 70, but less than an 85, you will be awarded a “1” (basic level). Anything less than an 70, receives a “0”. A “0” or a “1” means that you did not meet the target level for this competency for this course.
My criteria for awarding a “2”: If you score at least an 85, but less than an 95, you will be awarded a “2” (intermediate level) and will have met the target for this competency for this course.
My criteria for awarding a “3”: There are some similarities between the intermediate and advanced level of this competency, but it really has to do with the complexity of the analysis being conducted by the student. Most students in this class do achieve the basic/intermediate level, but it will be fairly rare for a student to achieve the advanced level during this course. I will be using the same assignments as stated above – if the average of these assignments is at least a 95 or above, you will be awarded a “3” (advanced level) and will have exceeded the target for this competency for this course.
Epidemiology Study Assessment Rubric | ||
---|---|---|
Criteria | Ratings | Pts |
Followed Instructions (those given here, elsewhere in the course, and via Canvas announcements and emails), Used Correct Grammar and Terminology |
15 to >7.5 pts Excellent to Average 7.5 to >0 pts Below Average |
/ 15 pts |
Form Heading Correct |
5 to >2.5 pts Excellent to Average 2.5 to >0 pts Below Average |
/ 5 pts |
Purpose of Study |
5 to >3 pts Excellent to Average 3 to >0 pts Below Average |
/ 5 pts |
Study Design |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
Study Sample |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
Primary Measures |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
Statistical Test(s) Used |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
2×2 Table |
5 to >3 pts Excellent to Average 3 to >0 pts Below Average |
/ 5 pts |
Calculation |
5 to >3 pts Excellent to Average 3 to >0 pts Below Average |
/ 5 pts |
Interpretation |
5 to >2.5 pts Excellent to Average 2.5 to >0 pts Below Average |
/ 5 pts |
Bias |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
Strengths & Limitations of Design |
10 to >5 pts Excellent to Average 5 to >0 pts Below Average |
/ 10 pts |
This criterion is linked to a Learning OutcomeL3. ANALYTICAL THINKING threshold: 3 |
3 pts Advanced L3.4 Develops Complex Plans or Analyses. Identifies multiple elements of a problem and breaks down each of those elements in detail, showing causal relationships between them; Peels back multiple layers of a problem; Uses several analytical techniques to identify potential solutions and weigh the value of each. 2 pts Intermediate L3.2 Identifies Basic Relationships. Identifies the cause-and-effect relationship between two aspects of a situation; Separates situations into two parts: pro and con; Sorts out a list of tasks in order of importance. L3.3 Recognizes Multiple Relationships Makes multiple causal links: several potential causes of events, several consequences of actions, or multiple-part chain of events (A leads to B leads to C leads to D); Analyzes relationships among several parts of a problem or situation (e.g., anticipates obstacles and thinks ahead about next steps, in detail, with multiple steps). 1 pts Basic L3.1 Breaks Down Problems. Breaks problems into simple lists of tasks or activities without assigning values; lists items with no particular order or set of priorities. |