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sasuser1000
Calcite | Level 5

 

I am using a logistic regression and my biggest problem is the very low correlations between the dependent and independents. The highest correlation with the dependent variable is a spend variable with a boxcox transformation and yield only a correlation of 0.2.

The results of my model are not very impressive and this, I beleive, it is related to the fact that all of the variables have a correlation lower or equal to 0.2 with the dependent,

the area under the curve is 0.684 and the classification table is below. on final note, I did try different transformations on all independents and interactions as well.

Did someone had a similar experience?

3 REPLIES 3
PaigeMiller
Diamond | Level 26

I can't recall if this ever happened to me, but low correlations usually mean poor model fit

--
Paige Miller
sasuser1000
Calcite | Level 5

After my posting, I have added a new variable from the database to my list of predictors and the distribution was bimodal which led me to think that my sample is including two different kind of population, i have corrected this and correlations are now fine

SteveDenham
Jade | Level 19

This is a super good example of how important data visualization is to good analysis.

Steve Denham

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