Chung and Hwang (2008) examined the difference between an experimental and a con
ID: 3040367 • Letter: C
Question
Chung and Hwang (2008) examined the difference between an experimental and a control group of patients with leukemia. The experimental group received two follow-up phone calls after discharge, and the control group received routine care. Their Table 2 is reproduced as Figure 9-11. 12. What was the independent variable? 14. What was the mean score for the quality of life for each group? 16. What was the mean score for self-care for each group? 18. Which group had a higher level of symptom distress? Was this statistically significant? 20. Look at Figure 9-12 from the same study. Interpret the statistically significant results in plain English. 22. A convenience sample was used. Is this a probability or nonprobability sampling method? 24. How could you improve on this study’s sampling method?Chung and Hwang (2008) examined the difference between an experimental and a control group of patients with leukemia. The experimental group received two follow-up phone calls after discharge, and the control group received routine care. Their Table 2 is reproduced as Figure 9-11. 12. What was the independent variable? 14. What was the mean score for the quality of life for each group? 16. What was the mean score for self-care for each group? 18. Which group had a higher level of symptom distress? Was this statistically significant? 20. Look at Figure 9-12 from the same study. Interpret the statistically significant results in plain English. 22. A convenience sample was used. Is this a probability or nonprobability sampling method? 24. How could you improve on this study’s sampling method?
Chung and Hwang (2008) examined the difference between an experimental and a control group of patients with leukemia. The experimental group received two follow-up phone calls after discharge, and the control group received routine care. Their Table 2 is reproduced as Figure 9-11. 12. What was the independent variable? 14. What was the mean score for the quality of life for each group? 16. What was the mean score for self-care for each group? 18. Which group had a higher level of symptom distress? Was this statistically significant? 20. Look at Figure 9-12 from the same study. Interpret the statistically significant results in plain English. 22. A convenience sample was used. Is this a probability or nonprobability sampling method? 24. How could you improve on this study’s sampling method? 16. What was the mean score for self-care for each group? 18. Which group had a higher level of symptom distress? Was this statistically significant? 20. Look at Figure 9-12 from the same study. Interpret the statistically significant results in plain English. 22. A convenience sample was used. Is this a probability or nonprobability sampling method? 24. How could you improve on this study’s sampling method?
GURE 9-11 Experimental Group (N = 35) Control Group (N=35) Variable Self-care Symptom distress 0.34 Quality of life P
Explanation / Answer
12. What was the independent variable?
The independent variable are Self-care, Symptoms distress, Quality of life.
14. What was the mean score for the quality of life for each group?
Mean Score for the quality of life is 70.46 for experimental group.
Mean Score for the quality of life is 44.15 for control group.
16. What was the mean score for self-care for each group?
Mean Score for the self-care is 2.67 for experimental group.
Mean Score for the self-care is 1.78 for control group.
18. Which group had a higher level of symptom distress? Was this statistically significant?
The control group has higher level of symptom distress with mean of 0.82. The mean symptom distress of the experimental group is 0.34
The p-value of the mean difference is less than 0.001 (for t = -5.158). As, the p-value is less than 0.05, the difference was statistically significant.
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