Assignment

Exercises in Measurement and validity

For this assignment, you will be working through questions regarding measurement and validity.. Your answers should be written in complete sentences. Some of the answers may require you to show your work.

1. You have just started a new diet program. To mark your progress, you start weighing yourself three times a day. You also notice that each time you weigh yourself in a given day, the number of pounds is different. Based on the rules regarding the scales of measurement, why is it wrong to weigh yourself more than once a day?

2. Your hospital administration has received several phone complaints from patients about rude behavior from registration staff and long wait times to register in both the Dermatology and Audiology Outpatient Clinics. A decision is made to send a patient satisfaction survey to all Outpatient Clinic patients to determine overall patient satisfaction in the hospital's Clinic setting. The survey developed uses this type of scoring: 1 = strongly disagree and 5 = strongly agree. What type of scale of measurement is this?

3. Your hospital wants to study patients readmitted within 30-days. What measures (e.g. Medicare patients only) would you recommend be included in the study (identify at least 3)? Where would you locate the data elements (e.g. admission records)?

4. Your hospital's Pharmacy and Therapeutics Committee undertook a quality review of Medication forms from discharges in the first quarter of the year and identified the errors by 5 general categories and then calculated the percentage of the total errors by category. The results were: Dosage Form 6%, Name confusion 13%, Communication 19%, Labeling 20%, and Human Factors 42%. As the HIM Director you are a member of the P&T Committee, the Chair asks you to prepare a graphic display of the error results for Medical Staff review. What is the best choice of a graphic display to present this data to the Medical Staff? And why

a. Line Graph
b. Bar Graph
c. Pie chart
d. Data Table

5. Provide a definition and example for the following terms:

a. Content validity
b. Construct validity
c. Criterion validity.