Mean And Standard Deviation: Case Study
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 …show more content…
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 as evidenced by lower SD (Empowerment total – 9.02 baseline to 8.91 post. Self-care and efficacy – 14.02 baseline to 12.24 post. Depression – 10.88 baseline to 10.45 post). A smaller change in SD indicates that the data tends to stay close to the mean.
6. Did the empowerment variable or self-care self-efficacy variable demonstrate the greatest amount of dispersion? Provide a rationale for your answer. The self-care/self efficacy variables demonstrated the greatest amount of dispersion. This is shown in the SD numbers, where empowerment showed a difference of 0.11 (9.02-8.91=0.11). Self care/self efficacy had a difference of 1.78 (14.02-12.24=1.78)
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
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 …show more content…
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 as evidenced by lower SD (Empowerment total – 9.02 baseline to 8.91 post. Self-care and efficacy – 14.02 baseline to 12.24 post. Depression – 10.88 baseline to 10.45 post). A smaller change in SD indicates that the data tends to stay close to the mean.
6. Did the empowerment variable or self-care self-efficacy variable demonstrate the greatest amount of dispersion? Provide a rationale for your answer. The self-care/self efficacy variables demonstrated the greatest amount of dispersion. This is shown in the SD numbers, where empowerment showed a difference of 0.11 (9.02-8.91=0.11). Self care/self efficacy had a difference of 1.78 (14.02-12.24=1.78)
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