A researcher computes two 2* 2 between-subjects ANOVAs.In Study 1,he observes eight participants in each cell; in Study 2,he observes 12 participants in each cell.Which study is associated with a larger value for degrees of freedom for the A * B interaction?
A) Study 1
B) Study 2
C) both studies have the same degrees of freedom for the A * B interaction

Question

A researcher computes two 2* 2 between-subjects ANOVAs.In Study 1,he observes eight participants in each cell; in Study 2,he observes 12 participants in each cell.Which study is associated with a larger value for degrees of freedom for the A *  B interaction?
A) Study 1
B) Study 2
C) both studies have the same degrees of freedom for the A * B interaction

Quizplus · Accepted Answer

The degrees of freedom for the interaction in a 2x2 ANOVA is determined by the number of levels of each factor, not the number of participants. Both studies have the same 2x2 design, so they have the same degrees of freedom for the interaction.

A Researcher Computes Two 2* 2 Between-Subjects ANOVAs