Research Methods in Health and Human Performance Case Study

Week 3 study guide assignment

1. Explain descriptive statistics
2. What is central tendency?
3. What is the extent to which values are spread out in a data distribution?
4. Explain the difference between mode, median, mean, and range
5. Explain what is meant by proving the null hypothesis
6. What is a statement indicating an expected direction of a relationship or a difference for the purposes of statistical testing?
7. What is the ‘alpha level’ in terms of margin of error?
8. What is the difference between a type i and type ii error
9. What is meant by the “power” of the probability accepting the null hypotheses
10. What is the best choice for sampling when choosing participants for a study