Reference no: EM13251437
Answer the Following Questions
1. Jackson, even-numbered Chapter Exercises, pp. 308-310.
2. What is an F-ratio? Define all the technical terms in your answer.
3. What is error variance and how is it calculated?
4. Why would anyone ever want more than two (2) levels of an independent variable?
5. If you were doing a study to see if a treatment causes a significant effect, what would it mean if within groups, variance was higher than between groups variance? If between groups variance was higher than within groups variance? Explain your answer
6. What is the purpose of a post-hoc test with analysis of variance?
7. What is probabilistic equivalence? Why is it important?
Excercise
1. What is/are the advantage(s) of conducting a study with three or more levels of the indepen¬dent variable?
2. What is the difference between a randomized ANOVA and a repeated measures ANOVA? What does the term one-way mean with respect to an ANOVA?
3. Explain between-groups variance and within-groups variance.
4. If a researcher decides to use multiple compari¬sons in a study with three conditions, what is the
probability of a Type I error across thesecom¬parisons? Use the Bonferroni adjustment to determine the suggested alpha level.
5. If Ho is true, what should the F-ratio equal or be close to? If H. is supported, should the F-ratio be greater than, less than, or equal to I?
6. When should post hoc comparisons be performed?
7. What information does eta-squared (η) provide?
8. Why is a repeated measures ANOVA statistically more powerful than a randomized ANOVA?
Attachment:- Assignment.rar