For a repeated-measures design,df = n₁ + n₂ - 2 for the t statistic.

Name: For a repeated-measures design,df = n 1 + n 2 - 2 for the t statistic.
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The formula provided does not accurately represent the degrees of freedom (df) calculation for a t statistic in a repeated-measures design. The degrees of freedom for a repeated-measures t-test are typically calculated based on the number of subjects and the number of measurements, not using the formula provided.

For a Repeated-Measures Design,df = N1 + N2 - 2

For a Repeated-Measures Design,df = N₁ + N₂ - 2