907 words - 4 pages

Week 4 Workbook Exercise 36

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1. Discuss each aspect of these results:

F-value is less than 0.05

A. Yes.

B. No.

Answer: A

We should reject the null hypothesis:

A. Yes.

B. No.

Answer: A

2. The null hypothesis for the Baird and Sands (2004) study that focuses on the effect of the GI with PMR treatment on patients’ mobility level

A. The mean mobility scores are the same for the two groups.

B. The mean mobility scores are not ...view middle of the document...

04>0.01. In this case, the null hypothesis would be accepted and it would be concluded that there is no difference between the control and treatment groups.

6. Can ANOVA be used to test proposed relationships or predicated correlations between variables in a single group?

A. Yes.

B. No.

Answer: B

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ANOVA tests difference in relationships among and within groups. To do this, the test requires more than one sample group. ANOVA cannot be used in the situation.

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7. If a study had a result of F (2,147) = 4.56, p=0.003, how many groups were in the study, what was the sample size?

A. 2, 146

B. 2, 147

C. 3, 147

D. 3, 150

Answer: D

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Please provide a short rationale for your answer:

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8. The researchers state that the sample for their study was 28 women with a diagnosis of OA, and that 18 were randomly assigned to the intervention group and 10 were randomly assigned to the control group. Discuss the study strengths and/or weaknesses in this statement.

Random assignment of group

A. This is a strength of the study.

B. This is a weakness of the study.

Answer: A

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The study strength in the above statement is that the assignment of the treatments to the subjects was random.

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Imbalance of subjects (unequal numbers) in the two groups

A. This is a strength of the study.

B. This is a weakness of the study.

Answer: B

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The weakness is that the treatments were not assigned to the subjects equally.

Small sample size

A. This is a strength of the study.

B. This is a weakness of the study.

Answer: A

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9. In your opinion, have the researchers established that guided imagery (GI) with...

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