Read the study in the link below. In this study, the researchers looked at changes in patients understanding of risk factors associated with metabolic disease and changes in habits to decrease those risks. Through a model curriculum, participants were provided information about how their decisions were influencing the development and progression of metabolic disease.

1. This is an interesting study because here we see the use of both repeated measures t-tests as well as independent t-tests. How did the researchers use both types of t-tests in light of the fact that we discussed you should choose one or the other?
2. Discuss the sample size in the Sumter County sample. Using a source, discuss the validity of the design with just 5 participants?
3. In the article, the authors indicate that some data are positively-skewed. Discuss the meaning of that, and why would the skew of data interfere with using it in the t-tests? (In your response, consider the distribution of the test statistic).

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