Hlt 362 module 3 exercise 31 t-test for dependent groups

1.  What are the two groups whose results are reflected by the t ratios in Tables 2 and 3?

 

2.  Which t ratio in Table 2 represents the greatest relative or standardized difference between the pretest and 3 months outcomes? Is this t ratio statistically significant? Provide a rationale for your answer.

 

3.  Which t ratio listed in Table 3 represents the smallest relative difference between the pretest and 3 months? Is this t ratio statistically significant? What does this result mean?

 

4.  What are the assumptions for conducting a t-test for dependent groups in a study? Which of these assumptions do you think were met by this study?

 

5.  Compare the 3 months and 6 months t ratios for the variable Exercise from Table 3. What is your conclusion about the long-term effect of the health-promotion intervention on Exercise in this study?

 

6.  What is the smallest, significant t ratio listed in Table 2? Provide a rationale for your answer.

 

7.  Why are the larger t ratios more likely to be statistically significant?

 

8.  Did the health-promotion program have a statistically significant effect on Systolic blood pressure (BP) in this study? Provide a rationale for your answer.

 

9.  Examine the means and standard deviations for Systolic BP at pretest, 3 months (completion of the treatment), and 6 months. What do these results indicate? Are these results clinically important? Provide a rationale for your answer.

 

10.  Is this study design strong or weak? Provide a rationale for your answer.

 

Bonus Question (Optional)

 

Would you, as a health care provider, implement this intervention at your facility based on the Total Risk Score results? Provide a rationale for your answer.

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