Suppose that four groups,each consisting of 100 randomly selected individuals,were exposed to four different commercials about Tide detergent.After seeing the commercial,each individual provided ratings on preference for Tide,preference for Proctor and Gamble (the company making Tide),and preference for the commercial itself.Because these three preference variables are correlated,________ should be conducted to determine which commercial is the most effective (produced the highest preferences across the three variables).
A)MANOVA
B)one-way ANOVA
C)n-way ANOVA
D)regression

Question

Quizplus · Accepted Answer

MANOVA (Multivariate Analysis of Variance) is the best choice in this scenario as it allows for the analysis of multiple dependent variables simultaneously. In this case, we have three dependent variables (preference for Tide, preference for Proctor and Gamble, and preference for the commercial itself) that are likely to be correlated. MANOVA allows us to analyze the influence of the independent variable (the different commercials) on the combined dependent variables. ANOVA and regression, on the other hand, are better suited for analyzing the relationship between a single dependent variable and one or more independent variables.

Suppose That Four Groups,each Consisting of 100 Randomly Selected Individuals,were