A repeated-measures study uses a sample of n = 20 participants to evaluate the mean
differences among three treatment conditions. In the analysis of variance for this study, what is
the value for dfbetween treatments?
sdvsdv
To find the value for dfbetween treatments in the analysis of variance (ANOVA) for a repeated-measures study with three treatment conditions and a sample of n = 20 participants, you need to follow these steps:
Step 1: Determine the total number of treatment conditions.
In this case, there are three treatment conditions.
Step 2: Calculate the total number of participants.
The sample size, n, is given as 20 participants.
Step 3: Determine the value for dfbetween treatments.
The formula to calculate dfbetween treatments in a repeated-measures ANOVA is:
dfbetween = (number of treatment conditions - 1) * (number of participants - 1)
Using the values from steps 1 and 2:
dfbetween = (3 - 1) * (20 - 1)
dfbetween = 2 * 19
dfbetween = 38
Therefore, the value for dfbetween treatments is 38.