The degree of freedom for for the error is 25.
A researcher conducts a repeated-measures experiment using a sample of n = 8 subjects to evaluate
the differences among four treatment conditions. If the results are examined with an ANOVA.
calculation are:-
The df values for the F-ratio?
between = k – 1 = 4 – 1 = 3
within = k * (n – 1) = 4 * (8 – 1) = 28
between Subjects = n – 1 = 4 – 1 = 3
error = within – between Subjects = 28 – 3 = 25
The pdf of the F-ratio is 3 (between) and 25 (error)
Degrees of freedom refers to the maximum number of logically independent values, which are values that have the freedom to vary, in the data sample. Degrees of freedom is calculated by subtracting one from the number of items within the data sample.
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