Apublished report of a repeated-measures research study includes the following description of the statistical analysis. "the results show significant differences among the treatment conditions, f(2, 26) = 4.87, p < .05." a. how many treatment conditions were compared in the study? b. how many individuals participated in the study?

3 treatment conditions were compared in the study.

14 individuals participated in the study.

Step-by-step explanation:

Consider the provided information.

Part (A) How many treatment conditions were compared in the study?

There are two sets of degrees of freedom; one for the numerator and one for the denominator.

F ratio is defined as:

The formula for between treatment is:

Substitute in above formula.

Therefore, 3 treatment conditions were compared in the study.

Part (B) How many individuals participated in the study?

The error degree of freedom is

Substitute and k=3 in above formula.

Hence, 14 individuals participated in the study.

step-by-step explanation:

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