Exercise 16: Mean and Standard Deviation
1. The null hypothesis would be: There is no difference in levels of empowerment, self-care and efficacy, or depression in patients with end stage renal disease that have attended an empowerment program.
2. The average baseline depression score in the experimental group was 14.00. This value is pulled from the Mean Column
3. The baseline number for the self-care and efficacy patients was 89.56, where posttest numbers are 96.00. This should be an expected number as the patient should score higher post program.
4. The experimental group showed a decrease from a baseline of 14.00 to a 13.36. The Control group stayed the same when comparing baseline to Post Test.
5. The mean is 101.08 and is found in the total column, under the empowerment baseline posttest section.
6. The biggest change in mean in the Empowerment group, with a difference of 6.64. The study shows pre and post number for ESRD patient’s that attended an empowerment program, so one would expect that the greatest increase would be in empowerment.
Post Test Scores – Baseline score = Difference 105.04-98.40=6.64
7. According to the Relevant Study Results, the average time that each patient was on dialysis was 52.56 months.
8. The answer would be B, 96 was the average self-care self-efficacy posttest score for the experimental group.
9. The control groups SD of 8.99 indicates the standard deviation.
Class: Applied Statistics for Health Care Professionals Date:
EXERCISE 16 Questions to be Graded
1. The researchers analyzed the data they collected as though it were at what level of measurement? The correct answer is C, Interval/Ratio
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...
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