Assignment:
Question 1. Complete each of the following ANOVA summary tables. In addition, answer the following questions for each of the QANOVA 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
|
6
|
150
|
|
|
|
Error
|
72
|
|
|
|
|
Total
|
39
|
150
|
|
|
A researcher is attempting to determine the effects of practice and gender on a timed task. Participants in an experiment are given a computerized search task. They search a computer screen of various character and attempt to find a particular character on each trial. When they find the designated 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
|
Women
|
Men
|
|
|
|
2 Hours
|
12
|
11
|
|
|
| |
|
|
|
|
| |
11
|
12
|
|
|
| |
13
|
12
|
|
|
| |
12
|
13
|
|
|
| |
11
|
12
|
|
|
|
4 Hours
|
11
|
11
|
|
|
| |
10
|
8
|
|
|
| |
10
|
8
|
|
|
| |
10
|
10
|
|
|
| |
8
|
10
|
|
|
| |
7
|
9
|
|
|
|
6 Hours
|
7
|
8
|
|
|
| |
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 using the preceding data to calculate the sum of squares.
- Are the values of Fobt significant at cx =.05? At cx =.01?
- What conclusions can be drawn from the F-ratio
- What is the effect size, and what does this mean?
- Graph the means.