Question: The following ANOVA table presents the results from a 2-factor study with 2 levels of Factor A and 3 levels of Factor B using n=11
- The following ANOVA table presents the results from a 2-factor study with 2 levels of Factor A and 3 levels of Factor B using n=11 in each condition. Fill in the missing values. Hint: start with the df values. Fill in the missing ANOVA values.
Source | SS | df | MS | F | P |
Between | |||||
Factor A | 7 | ||||
Factor B | 8 | ||||
Interaction | 3 | ||||
Within | 240 | ||||
Total |
Research indicates that paying students to improve their grades does not work. However, paying students for specific tasks such as reading books, attending class, or doing homework does have a significant effect. Apparently, students on their own do not understand how to get good grades. If they are told exactly what to do, however, the incentives work. The following data represent a 2 factor study. The data are quiz scores (out of 15).
Paid for Homework | Not Paid for Homework | |
14 | 2 | |
7 | 7 | |
Paid for Grades | 10 | 5 |
9 | 7 | |
11 | 3 | |
9 | 6 | |
13 | 7 | |
7 | 2 | |
Not Paid for Grades | 9 | 4 |
7 | 2 | |
11 | 6 | |
7 | 3 |
- Using SPSS conduct the appropriate test. You need to copy/paste/print the ANOVA table to get credit for this question.
- What do you conclude from the SPSS results (there are three tests, so three conclusions)?
- Write up your results
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