Mike Wants to Test How Different Levels of Verbal Ability

Multiple Choice

Mike wants to test how different levels of verbal ability and math ability influence a measure of reading comprehension and a measure of graph interpretation.He is concerned that IQ may confound the results since it is likely to have an effect, too.What test should he use to account for this third variable?

A) factorial ANOVA
B) MANOVA
C) ANCOVA
D) MANCOVA