Applied Statistics for Health Care Professionals – What Is Statistics and Why It Is Important to Health Sciences?

Grand Canyon University

Complete Exercises 11 and 16 in Statistics for Health Care Research: A Practical Workbook, and submit as directed by the instructor.

In order to receive full credit on calculated answers, please show your work. (Use Word’s equation editors, etc., and/or provide a short written description as to how you obtained the final result.)

Exercises 11Questions to be graded

1. What demographic variables were measured at least at the interval level of measurement?

2. What statistics were used to describe the length of labor in this study? Were these appropriate?

3. What other statistic could have been used to describe the length of labor? Provide a rationale for your answer.

4. Were the distributions of scores similar for the experimental and control groups for the length of labor? Provide a rationale for your answer.

5. Were the experimental and control groups similar in their type of feeding? Provide a rationale for your answer.

6. What was the marital status mode for the subjects in the experimental and control groups? Provide both the frequency and percentage for the marital status mode for both groups.

7. Could a median be determined for the education data? If so, what would the median be for education for the experimental and the control groups? Provide a rationale for your answer.

8. Can the findings from this study be generalized to Black women? Provide a rationale for your answer.

9. If there were 32 subjects in the experimental group and 36 subjects in the control group, why is the income data only reported for 30 subjects in the experimental group and 34 subjects in the control group?

10. Was the sample for this study adequately described? Provide a rationale for your answer.

Exercise 16: Mean and Standard Deviation

1. The researchers analyzed the data they collected as though it were at what level of

measurement?

a. Nominal

b. Ordinal

c. Interval/ratio

d. Experimental

2. What was the mean posttest empowerment score for the control group?

Answer: Mean = 97.12.

3. Compare the mean baseline and posttest depression scores of the experimental

group. Was this an expected finding? Provide a rationale for your answer

4. Compare the mean baseline and posttest depression scores of the control group. Do

these scores strengthen or weaken the validity of the research results? Provide a

rationale for your answer.

5. Which group’s test scores had the least amount of variability or dispersion? Provide

a rationale for your answer.

6. Did the empowerment variable or self-care self-efficacy variable demonstrate the

greatest amount of dispersion? Provide a rationale for your answer.

7. The mean ( X ) is a measure of ________________ __________________ of a

distribution while the SD is a measure of _____________________ of its scores.

Both X and SD are _________________ statistics.

8. What was the mean severity for renal disease for the research subjects? What was

the dispersion or variability of the renal disease severity scores? Did the severity

scores vary significantly between the control and the experimental groups? Is this

important? Provide a rationale for your answer.

9. Which variable was least affected by the empowerment program? Provide a

rationale for your answer.

10. Was it important for the researchers to include the total means and SDs for the

study variables in Table 2 to promote the readers’ understanding of the study

results? Provide a rationale for your answer.