HLT362V Week 1 Homework EX#16
Answers for EXERCISE 16 page 122 (Questions 1- 4 are optional)• Mean and Standard Deviation
Exercise 16: Mean and Standard Deviation
1. The researchers analyzed the data they collected as though it were at what level of measurement?
Answer: c. The researchers analyzed the data as though it were at the interval/ratio level since they calculated means (the measure of central tendency that is appropriate only for interval/ratio level data) and standard deviations (the measure of dispersion for interval/ratio data) to describe their study variables.
2. What was the mean posttest empowerment score ...view middle of the document...
This result strengthens the validity of the study findings, indicating...
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...