Difference between revisions of "Multiple Regression Analysis"

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(→‎Collinearity and Multicollinearity)
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== Collinearity and Multicollinearity ==
 
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'''Collinearity''' is "a condition that exists when two predictors correlate very strongly" (Meyers, Gamst, & Guarino, 2017, p. 189).
 
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'''Multicollinearity''' is a condition that exists when "more than two predictors correlate very strongly" (p. 189).
 
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Steps for How to Detect Multicollinearity in SPSS:
 
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1. Click "Analyze"
 
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2. Then Select "Regression"
 
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3. Click "Linear"
 
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4. Put all the IV's in the IV section and then move ONE IV into the DV box.
 
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5. Uncheck all boxes in "Statistics" except for "Collinearity Diagnostics"
 
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6. Click "Ok"
 
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*The output should indicate if there is a VIF.  If the VIF is above 3 there is likely multicollinearity issues, and if it is above 10 you are highly likely to have multicollinearity issues.
 
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Detecting Multicollinearity in SPSS [https://www.youtube.com/watch?v=oPXjQCtyoG0]
 
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''Contribution by: Britany Kuslis, WCSU Cohort 8''
 
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References:
 
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Gaskin, James, director. ''Detecting Multicollinearity in SPSS''. YouTube, YouTube.com, 26 Mar. 2011, www.youtube.com/watch?v=oPXjQCtyoG0.
 
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Meyers, S., Gamst, G., & Guarino, A.J. (2017). ''Applied multivariate research: Design and interpretation.'' Thousand Oaks, CA: Sage Publications.
 

Latest revision as of 09:03, 2 December 2019