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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Definitions:

Eyebrows

The strips of hair located above the eyes on the face, serving functions related to expression, facial recognition, and protection of the eyes.

Eyelids

The movable pieces of skin that cover and protect the eyes when closed and help to spread moisture (tears) over the surface of the eyes when they blink.

Eyelashes

The short, curved hairs growing on the edge of eyelids, serving to protect the eyes from debris and aid in moisture retention.

Conjunctivas

The mucous membranes that cover the front surface of the eyeball and the inner surface of the eyelids, acting as a protective barrier.