Grand Canyon Statistics Exercise 16

1. D. The chart displays the mean and standard deviations for the data set which is the best measure of central tendency and dispersion/spread respectively for interval/ratio measurement. 2. 97.12 3. The mean baseline depression score is 14.00 and the post test mean depression score for the experimental group is 13.36. This shows that the mean for depression in this group decreased. According to the statement that empowerment techniques have an important role in self management of ESRD, decreasing of the depression mean after the test would be highly important or a positive impact on depression although this is not a significant amount of decrease. 4. The means for the baseline and the post test for the control group remained the same at 10.40. This helps or strengthens the researchers claim that there were significant differences between intervention groups and control groups as the control group did not change. 5. The test scores with the least amount of variability would be the empowerment post test scores for the experiment group with a standard deviation of 7.28. This standard deviation is almost a full point and a half lower than the closest standard deviation for the control post test score of 8.73. The experiment group, having the lowest standard deviation, has the least amount of dispersion among patients. 6. The self-care-self-efficiency variable consistently showed a higher amount of dispersion across the board. Whether it was the experimental variable or control group, the standard deviations were < 10 within the empowerment group. Whether it was the experimental group or the control group, the standard deviations were >10. 7. Central tendency, variation/dispersion, descriptive 8. The mean severity for renal disease among test subjects is 6.74. The dispersion or variability was 2.97. This study found that there were significant differences in improvement of empowerment, self-care self-efficacy, and depression