**QUESTION: 1: Jackson, even-numbered Chapter Exercises, pp. 335-337.**

**#2: How many independent variables are in 4 x 6 factorial design? How many conditions (cells) are in this design?**

**#4: What is the difference between a cell (condition) mean and the means used to intemperate a main effect?**

**#6: What is the difference between a complete factorial design and an incomplete factorial design?**

**#8: Explain the difference between a tw-way ANOVA and a three-way ANOVA.**

**#10: Complete each of the following ANOVA summary tables. In addition, answer the following questions for each of the ANOVA summary tables:**

**What is the factorial notation?****How many conditions were in the study?****How many subjects were in the study?****Identify significant main effects and interaction effects.**

**Source df SS MS F**

**A 1 60**

**B 2 40**

**A X B 2 90**

**Error 30 **

**Total 35 390**

** **

**Source df SS MS F**

**A 2 40**

**B 3 60**

**A X B 6 150**

**Error 72 **

**Total 83 400**

** **

**Source df SS MS F**

**A 1 10**

**B 1 60**

**A X B 1 20**

**Error 36**

**Total 39 150**

** **

**#12: A researcher is attempting to determine the effects of practice and gender on a times task. Participants in an experiment are given a computerized search task. They search a computer screen of various characters and attempt to find a particular character; they press a button to stop a timer. Their reaction time (in seconds) on each trial is recorded. Subjects practice for 2, 4 or 6 hours and are either female or male. The reaction time data for the 30 subjects appear here. **

** **

**2-Hours Women Men**

** 12 11**

** 13 12**

** 12 13**

** 11 12**

** 11 11**

** **

** **

**4-Hours Women Men**

** 10 8**

** 10 8**

** 10 10**

** 8 10**

** 7 9**

** **

** **

**6-Hours Women Men**

** 7 5**

** 5 6**

** 7 8**

** 6 6**

** 7 8**

** **

** **

**Source df SS MS F**

**Gender 0.027**

**Practice 140.60**

**Gender X Practice 0.073**

**Error 28.00**

**Total 168.70**

** **

**Complete the ANOVA summary table.****Are the values of Fobt significant at a=.05?****What conclusions can be drawn from the F-ratios?****What is the effect size, and what does this mean?****Graph the means.**

** **

** **

**QUESTION #2: Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better?**

** **

**QUESTION #3: What is blocking and how does it reduce “noise”? What is a disadvantage of blocking?**

** **

**QUESTION #4: What is a factor? How can the use of factors benefit a design?**

** **

**QUESTION #5: Explain main effects and interaction effects.**

** **

**QUESTION #6: How does a covariate reduce noise?**

** **

**QUESTION #7: Describe and explain three trade-offs present in experiments.**

** **

** **

** **

** **

** **

**Support your paper with a minimum of 5 resources. In addition to these specified resources, other appropriate scholarly resources, including older articles, may be included.**

**Length: 5-7 pages not including title and reference pages****
****References: Minimum of 5 scholarly resources.**

**Question 2**

How many independent variables are in 4 x 6 factorial design? How many conditions (cells) are in this design?

**Question 4**

What is the difference between a cell (condition) mean and the means used to interpret a main effect?

**Question 6**

What is the difference between a complete factorial design and an incomplete factorial design?

**Question 8**

Explain the difference between a two-way ANOVA and a three-way ANOVA.

**Question 10**

Complete each of the following ANOVA summary tables. In addition, answer the following questions for each of the ANOVA summary tables:

- What is the factorial notation?
- How many conditions were in the study?
- How many subjects were in the study?
- Identify significant main effects and interaction effects.

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