A student randomly and independently samples and assigns 15 participants to one of 4 conditions. She...
A student randomly and independently samples and assigns 15 participants to one of 4 conditions. She gives each group a treatment she believes will affect performance on the dependent measure. Higher scores indicate better performance. The ANOVA summary table is from the data that she has collected. Find the dfwithin. If needed, please round to two decimal places.
| Source | SS | df | MS | F |
| Between | 82 | |||
| Within | 31 |
Homework Answers
Ans:
Total number of participants,N=15*4=60
(15 participants for each group)
df(treatment)=4-1=3
df(within)=60-4=56
| Source | SS | df | MS | F |
| Between | 82 | 3 | 27.33 | 49.38 |
| Within | 31 | 56 | 0.55 | |
| Total | 113 | 59 |
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