Question
Researchers in mental health fields are often interested in evaluating the effectiveness of using food images...
Researchers in mental health fields are often interested in evaluating the effectiveness of using food images to enhance positive mood. Adapting a typical design from such studies, suppose we have participants rate their mood change on a standard self-report affect scale after viewing images of "comfort" foods, fruits/vegetables (F/V), and random non-food images (used as a control group). The results are given in the table at right for this hypothetical study.
| Images | ||
|---|---|---|
| Control | F/V |
Comfort Foods |
| 0 | 0 | 4 |
| 1 | 1 | 2 |
| 1 | 2 | 3 |
| 3 | 3 | 5 |
| 0 | 1 | 1 |
(a) Complete the F-table. (Round your answers to two decimal places.)
|
Source of Variation |
SS | df | MS | Fobt |
|---|---|---|---|---|
| Between groups |
||||
| Between persons |
||||
| Within groups (error) |
||||
| Total |
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