When Sphericity Is Violated in a One-Way Within Subjects ANOVA

question 50

Multiple Choice

When sphericity is violated in a one-way within subjects ANOVA design,how do you proceed?

• A)Explore other methods of analyzing the data besides ANOVA,because ANOVA won't work properly.
• B)Interpret the Greenhouse-Geisser and/or Huynh-Feldt statistics,because they adjust for lack of sphericity.
• C)Use a more liberal (i.e.,higher)alpha level to compensate for the violation.
• D)Collect more data.

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