# Exercise 16 Questions to be Graded

**Topics:**Standard deviation, Arithmetic mean, Psychometrics

**Pages:**3 (626 words)

**Published:**July 20, 2014

1.The researchers analyzed the data they collected as though it were at what level of measurement? a.Nominal

b.Ordinal

c.Interval/ratio

d.Experimental

Answer: c. Interval/ratio

2.What was the mean posttest empowerment score for the control group? Answer: 97.12

3.Compare the mean baseline and posttest depression scores of the experimental group. Was this an expected finding? Provide a rationale for your answer. Answer: The mean baseline depression score is 14.00 and the posttest is 13.36 with a difference of 0.64.There is a slight amount of depression after the tools they were using and research was completed but was not enough of a difference to make an impact decision regarding if the strategies were truly effective. Patients were less depressed after the research.

4.Compare the mean baseline and posttest depression scores of the control group. Do these scores strengthen or weaken the validity of the research results? Provide a rationale for your answer. Answer: It was found that the baseline and posttest for depression of the control group remained the same at 10.4 and these scores strengthen the validity because only the experimental group showed a positive change in this experiment.

5.Which group's test scores had the least amount of variability or dispersion? Provide a rationale for your answer. Answer: The group with the least amount of variability was the experimental groups post test empowerment score because it showed the least amount of dispersion. The experimental groups SD post test score was only 7.28.

6.Did the empowerment variable or self-care self-efficacy variable demonstrate the greatest amount of dispersion? Provide a rationale for your answer. Answer: The group with the greatest amount of dispersion was the self-care self-efficacy variable group with a baseline SD of 14.88. The empowerment baselines result was 9.19. For the post test, the self-care...

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