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.