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A researcher reports an F-ratio with df between = 3 and df within = 40 from an independent-measures ANOVA. How many treatment conditions were compared in the experiment?

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Answer:

4 treatment

Step-by-step explanation:

The degree of freedom between = number of treatment (t) - 1

Degree of freedom between = 3

Hence,

3 = t - 1

Add 1 to both sides

3 + 1 = t - 1 + 1

4 = t

4 treatments

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