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What is an advantage of conducting a MANOVA rather than a separate ANOVA for each dependent variable?


A) Control of Type I error
B) Control of Type II error
C) Increase in statistical power
D) Reduction of interpretation issues

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Which correlational condition among the dependent variables is most preferred in a MANOVA?


A) High correlations
B) Moderate correlations
C) Low correlations
D) It doesn't matter

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C

A researcher is interested in testing the effect of three different training methods on three risk factors (levels of glucose, triglycerides, and cholesterol) . The researcher is also interested in the effects on men and women. What type of MANOVA is this?


A) Three-way
B) Two-way
C) One-way
D) It is not a MANOVA.

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B

Which of the following is true regarding the t-ratio, the F-ratio, and Wilks' lambda?


A) Smaller values of the t-ratio, the F-ratio, and Wilks' lambda lead to rejection of the null hypothesis.
B) Smaller values of the t-ratio lead to retention of the null hypothesis, and larger values of the F-ratio and Wilks' lambda lead to rejection of the null hypothesis.
C) Larger values of the t-ratio, the F-ratio, and Wilks' lambda lead to rejection of the null hypothesis.
D) Smaller values of Wilks' lambda lead to rejection of the null hypothesis, and larger values of the t-ratio and the F-ratio lead to rejection of the null hypothesis.

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What is the major difference between an ANOVA and a MANOVA?


A) The number of independent variables
B) The number of dependent variables
C) The number of independent and dependent variables
D) The general nature of the null hypothesis is distinctly different in an ANOVA and a MANOVA.

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The term MANOVA specifically refers to which of the following?


A) The number of independent variables
B) The number of dependent variables
C) The number of independent or dependent variables
D) The number of independent and dependent variables

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What does a significant MANOVA result mean?


A) You might have made a Type II error
B) You should conduct some type of post hoc procedure
C) Both A and B are correct
D) Neither A nor B is correct

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A researcher is interested in testing the effect of three different training methods on strength and aerobic capacity. The researcher is also interested in the effects on men and women. Is this a MANOVA?

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If it is a MANOVA, there are multiple independent variables.

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How many variables are involved in a one-way MANOVA?


A) One independent variable and one dependent variable
B) One independent variable and more than one dependent variable
C) More than one independent variable and one dependent variable
D) More than one independent variable and more than one dependent variable

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Which of the following is the most commonly used MANOVA test statistic?


A) Pillai's trace
B) Wilks' lambda
C) Hotelling's trace
D) Chi-square

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Which of the following conditions in a MANOVA is most deleterious to interpretation of the results?


A) Inclusion of between groups
B) Fixed factors
C) Low correlations among dependent variables
D) The inclusion of outliers in the data

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D

Why would one conduct a MANOVA rather than multiple ANOVAs?


A) To reduce the number of subjects needed
B) To decrease the probability of a Type I error
C) To test for interactions
D) To test multiple independent variables

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A researcher is interested in testing the effect of three different training methods on blood pressure (both systolic and diastolic). Is this a MANOVA?

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If it is a MANOVA, there are multiple dependent variables.

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Which of the following is not a MANOVA test statistic?


A) Pillai's trace
B) Wilks' lambda
C) Hotelling's trace
D) Chi-square

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