Question 1

How do we interpret a dummy variable coefficient?

Accepted Answer

A)  The difference between two means 
B)  The difference between two coefficients 
C)  The difference between two R-squared values 
D)  None of these 
A)  The difference between two means 
B)  The difference between two coefficients 
C)  The difference between two R-squared values 
D)  None of these A

Question 2

Which of the following is incorrect?

Accepted Answer

A)  Regression with one dummy variable (predictor) corresponds directly to an independent analysis of variance (ANOV
A)  
B)  Regression with more than one dummy variable including a covariate corresponds directly to an independent analysis of covariance (ANVOC
A)  
C)  Regression with more than one dummy variable (predictor) corresponds directly to an independent analysis of variance (ANOV
A)  
D)  Regression with one dummy variable (predictor) corresponds directly to an independent t-test 
A)  Regression with one dummy variable (predictor) corresponds directly to an independent analysis of variance (ANOV
A)  
B)  Regression with more than one dummy variable including a covariate corresponds directly to an independent analysis of covariance (ANVOC
A)  
C)  Regression with more than one dummy variable (predictor) corresponds directly to an independent analysis of variance (ANOV
A)  
D)  Regression with one dummy variable (predictor) corresponds directly to an independent t-test A

Question 3

Why is the number of dummy variables to be entered into the regression model always equal to the number of groups (g) minus 1 (g−1)?

Accepted Answer

A)  To avoid model misspecification 
B)  To increase the R-squared value 
C)  To avoid the situation of perfect multicollinearity 
D)  To control other variables in the model 
A)  To avoid model misspecification 
B)  To increase the R-squared value 
C)  To avoid the situation of perfect multicollinearity 
D)  To control other variables in the model C

Question 4

Which of the following procedures can be used to compare the means of the included groups in a dummy-variable regression model?

Accepted Answer

A)  Changing the reference group 
B)  Linear combination 
C)  Standardization 
D)  Not possible 
A)  Changing the reference group 
B)  Linear combination 
C)  Standardization 
D)  Not possible

Question 5

What does a dummy-variable regression analysis examine?

Accepted Answer

A)  The relationship between one continuous dependent and one continuous variable 
B)  The relationship between one categorical dependent and one continuous independent variable 
C)  The relationship between one continuous dependent and one categorical independent variable 
D)  The relationship between one continuous dependent and one dichotomous variable 
A)  The relationship between one continuous dependent and one continuous variable 
B)  The relationship between one categorical dependent and one continuous independent variable 
C)  The relationship between one continuous dependent and one categorical independent variable 
D)  The relationship between one continuous dependent and one dichotomous variable

How do we interpret a dummy variable coefficient?

Which of the following is incorrect?

Why is the number of dummy variables to be entered into the regression model always equal to the number of groups (g) minus 1 (g−1)?

Which of the following procedures can be used to compare the means of the included groups in a dummy-variable regression model?

What does a dummy-variable regression analysis examine?

Research and Statistics

Introduction to STATA

Simple Bivariate Regression

Multiple Regression

Interaction/Moderation Effects Using Regression

Linear Regression Assumptions and Diagnostics

Logistic Regression

Survival Analysis

Multilevel Analysis

Panel Data Analysis

Time-Series Analysis

Exploratory Factor Analysis

Structural Equation Modelling and Confirmatory Factor Analysis

Advanced Statistical Techniques

Programming and Dynamic Reporting Using STATA

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Exam 5: Dummy-Variable Regression

How do we interpret a dummy variable coefficient?

Which of the following is incorrect?

Why is the number of dummy variables to be entered into the regression model always equal to the number of groups (g) minus 1 (g−1)?

Which of the following procedures can be used to compare the means of the included groups in a dummy-variable regression model?

What does a dummy-variable regression analysis examine?

Research and Statistics

Introduction to STATA

Simple Bivariate Regression

Multiple Regression

Interaction/Moderation Effects Using Regression

Linear Regression Assumptions and Diagnostics

Logistic Regression

Survival Analysis

Multilevel Analysis

Panel Data Analysis

Time-Series Analysis

Exploratory Factor Analysis

Structural Equation Modelling and Confirmatory Factor Analysis

Advanced Statistical Techniques

Programming and Dynamic Reporting Using STATA

Filters