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Tuesday, November 26

Tuesday, November 26. Point-Biserial and Epsilon. e (epsilon). = df B ( F – 1) df B F + df W. e (epsilon). = df B ( F – 1) df B F + df W “Epsilon bears the same relationship to F that r pb bears to t ” (p. 239). Special Prize!

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Tuesday, November 26

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  1. Tuesday, November 26 Point-Biserial and Epsilon

  2. e (epsilon) • = dfB (F – 1) dfBF + dfW

  3. e (epsilon) • = dfB (F – 1) dfBF + dfW • “Epsilon bears the same relationship to F that rpb bears to t ” (p. 239)

  4. Special Prize! How can we tell if two variances are significantly different from each other?

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