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Regression Review
Regression Review
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Answers
1
If VIF values are greater than 10, you should be concerned.
False
True
2
We can establish causation in regression.
False
True
3
What are the outcome variables also called?
Regression Variable
Dependent Variable
Residuals
Independent Variable
4
What is one of the key words in regression analysis?
Correlation
Residual
Causation
Relationship
5
Where in the output in SPSS do you address the fit of the regression model?
The Coefficients Table.
None of these.
The Correlations Matrix under Descriptives.
Model Summary and ANOVA Tables.
6
Imagine: you just finished clicking all the boxes in SPSS and are ready to run the test. What do you do next?
Panic and do nothing.
Paste in syntax.
Run the test.
Make sure you checked all the right boxes.
7
You should address multicollinearity after running the analysis.
False
True
8
What values show you the importance of each predictor?
The standardized beta values.
Tolerance and VIF values.
The significant values (p).
The coefficients.
9
Residuals are the differences b/w what the model predicts and the observed data.
False
True
10
Why do we produce scatterplots before the regression analysis?
We do this to check the assumption of linearity and for outliers.
Because Dr. Chitiyo said so.
Because the graphs are nice visuals for a report.
We ONLY do this to see if there are outliers.
11
The independent variable is also called the predictor.
False
True
12
We should always use stepwise method entry.
False
True
13
Name two ways to assess multicollinearity.
VIF
Coefficient of Determination
Tolerance
R
14
What variables make a regression simple or multiple?
The outlying variables.
The covariates.
The independent variables.
The dependent variables.
15
Which of the following models a relationship between one IV and one DV?
Multiple Regression
Logistic Regression
Polynomial Regression
Linear Regression
16
Where are the VIF values found in the SPSS output?
The ANOVA table.
The Coefficients table.
The Correlations table.
The Model Summary table.
