Solved by a verified expert:Exhibit 12-3Suppose a researcher measured the test scores of college students who were taught chemistry in the presence of one type of music (country, rock, or classical) in one of three different colored classrooms (red, green, or blue).Refer to Exhibit 12-3. If a factorial design were used, what are the two independent variables?music and classroom colormusic and grade leveltest scores and musicclassroom color and test scoresb.a.There is an interaction ifthere is no main effect of either Variable A or Variable Bthe effect of Variable A depends on whether there is a main effect of Variable Bthere is a main effect of both Variable A and Variable Bthe effect of Variable A depends on the level of B