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16 Questions to be Graded Essay

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?
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.
The mean baseline for depression 14.00 and the post-test for depression was 13.36. The post-test score is 0.64 lower than the baseline score which is what the study hypothesized. The study results state “This study found that there were significant differences in improvement of empowerment, self-care self-efficacy, and depression in patients who were in the intervention group using empowerment strategies than with the control group patients” (Grove, 2007).

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.

The mean baseline and post-test depression score was 10.40. These scores strengthen the validity of the research results because it shows that depression did not improve for the patients within the control group but the scores did change for the patients in the experimental group.

5. Which group’s test scores had the least amount of variability or dispersion?
Provide a rationale for your answer.
The control group had the least amount of variability with the depression score which stayed with a SD of 10.4.

6. Did the empowerment variable or self-care self-efficacy variable demonstrate the greatest amount of dispersion? Provide a rationale for your answer.

The empowerment variable demonstrated the greatest amount of dispersion because the mean not only went up by 6.64 the SD also went down by 1.91 suggesting the scores are also closer to accurate.

7. The mean () is a measure of __central__ __tendency__ of a distribution while the SD is a measure of __dispersion_____ of its scores. Both and SD are ____descriptive_____ 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. The mean severity for renal disease for the research subjects was moderately severe with a mean of 6.74, SD of 2.97, from a range of 0-10. The severity scores did not vary significantly and it is important to have the same severity of disease across the board so the outcomes can be true.

9. Which variable was least affected by the empowerment program? Provide a rationale for your answer.

The mean for the control group was least affected by the empowerment program only rising 0.4.

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.

Yes it was important to include the totals so at a glance anyone can see that even when the experimental and control groups are combined the results still show an improvement in all three categories.

References

Grove, S. K. (2007). Statistics for Health Care Research: A Practical Workbook. [VitalSource Bookshelf version]. Retrieved from http://pageburstls.elsevier.com/books/978-1-4160-0226-0/outline/16The citation provided is a guideline, please check each citation for accuracy before use.


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