□ EXERCISE 31 Questions to be Graded
1.What are the two groups whose results are reflected by the t ratios in Tables 2 and 3?
Table 2 reflects the Health Promotion Program’s effects on cardiovascular risk factors and Table
3 is reflective of the program’s effects on health behavior.

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?

The T-ratio is 0.80. This value is not statistically significant since it is less than the tabulated value of 1.96. This is indicative of the program having no effect on health behaviors. 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?

Several assumptions for t-test for dependent/matched groups in a study are applied. First, it is assumed that the difference between the two groups of the dependent t-test is approximately or normally distributed. Second, the dependent variable is interval or ratio (continuous in nature). Third, any independent variable consists of one group or two “matched pair” groups. Finally, all subjects are assumed to have been surveyed the same and data collection was unbiased. The assumption that was met in this study is the normal distribution. 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? After comparing the t-ratios for the Exercise variable, I conclude that there is an effect on long term exercise and health behaviors. 6.What is the...

...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?
Answer: t=-7.75* (3months) and t= -3.93* (6 months). At 3 months, the difference in exercise from pretest was statistically significant with t = - 7.75*, P< 0.05. At 6 months the difference in exercise from pretest was also statistically significant with t = -3.93*. The...

...interval or ratio scale.
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? We can see that the magnitude of the score value is larger at 3 months and levels off at 6 months, thus we conclude that over time the long-term health-promotion intervention on Exercise in this study has less of an effect...

...Threesamma Joseph
HLT-362V
9/7/2012
1. The answer is C, interval/ratio. The researchers analyzed the data as though it were interval/ratio level. They calculated the mean and standard deviation which is only appropriate for interval/ratio level data.
2. The mean post-test empowerment score for the control group is 97.12. This data is found explicitly in the chart of data given.
3. The baseline score mean is 14 and the post-test depression score mean is...

...Name: Zipporah Gachoya Class: HLT362V
Date: 08/10/2013
■ Ex Questions to be graded: Exercise31
6. What is the smallest, significant t ratio listed in Table 2? Provide a rationale for your answer.
t = 2.03* the smallest t ratio listed in Table 2. It indicates that the cholesterol level change was statistically significant from pretest to 3 months. It is greater than the given value of p<0.05
7. Why are the larger...

...
HLT 362 Module 5 Exercise 27 Simple Linear Regression
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What are the independent and dependent variables in Figures 2, A, B, and C? How would you describe the relationship between the variables in Figures 2, A, B, and...

...
HLT 362 Module 4 Exercise 36
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The researchers found a significant difference between the two groups (control and treatment) for change in mobility of the women with osteoarthritis (OA) over 12 weeks with the results of...

...EXERCISE 29 Questions to be Graded
1. Were the groups in this study independent or dependent? Provide a rationale for your answer.
The two groups were independent since they were formed based on gender with no intent to match subjects on any variable. The men and women selected didn’t share any relationship or live in the same location.
2. t = −3.15 describes the difference between women and men for what variable in this study? Is this value significant? Provide a...

...1. The researchers analyzed the data they collected as though it were at what level of measurement?
The answer is C, which is interval/ratio scale.
2. What was the mean posttest empowerment score for the control group?
The mean posttest empowerment score for the control group was 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.
The data shows that there was an improvement in...