A statistically significant interaction obtained in a factorial analysis of variance indicates
that _____ .
a. the effect of one independent variable depends upon the level of the other
independent variable
b. the main effects necessarily are artifactual
c. the simple effects of factor Aare equal to the main effect of factor B.
d. all the main effects must be nonsignificant
Question 2
Post hoc comparisons in a two-factor between-subjects analysis of variance using the
Tukey HSD test are used to compare simple effects _____ .
a. if Fobs for the interaction is statistically significant
b. if Fobs for the interaction is nonsignificant
c. only if Fobs for the interaction and at least one main effect are statistically
significant
d. only if at least one main effect is statistically significant and Fobs for the
interaction is nonsignificant
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