Describe two data analysis situations in which MANOVA would be appropriate in your area of research. Include an explanation on what types of uncontrolled variables or covariates might be operating in each of these situations.

Explained below 

Step-by-step explanation

1. Situation where MANOVA was useful in my analysis of finding whether a set tutorial and other variables were important in changing the SAT scores of students:

What are the main effects of the independent variables?

>> What are the interactions among the independent variables?

>> What is the importance of the dependent variables?

>> What are the effects of covariates? How may they be utilized?

2. There is a wide range of applications in the areas of education & psychology. A wide range of applications is also possible in the area of marketing. One type of investigation which might be done in advertising research would be to check the effects of two broadcast communications media at three dissimilar times of the day on customer knowledge and intention to buy instantaneously. Covariates in such an investigation include the sex, age, and education level of the respondents. These could be controlled for after the investigation if these variables did have an effect on the result of the test.

3. One more type of investigation might be to test the effect of a point of purchase display against newspaper advertising. Two cities could be selected having similar demographic profiles. The local newspaper in one city only would carry advertisements about the particular product. Some stores would be selected in each city for the point of purchase shows and some selected for observation without the displays. Dependent variables to be observed might include levels of traffic on the aisles containing the product and the proportion of purchases containing the item of interest. Covariates include the number of shopping trips and readership of both newspapers.