Re: R and R square over .90? for regression with imputed dataset

Posted by Art Kendall on Dec 19, 2012; 12:29pm
URL: http://spssx-discussion.165.s1.nabble.com/R-and-R-square-over-90-for-regression-with-imputed-dataset-tp5717033p5717047.html

I agree with the two replies Rich sent.

In addition.
Why are the data missing?  How did you gather the data?

You say that data is missing at the scale level and at the item level. 
Did you create the scales yourself? 

To what degree are your missing data attributable to a few variables?  Are they items in a scale you put together?

On 12/18/2012 10:51 PM, [hidden email] wrote:

Hello,

I was running regressions with the imputed variables, and I got R and R2
over .90. Is this ever possible? The highest R2 I had with original dataset
was over .50.

I used SPSS Multiple Imputation and Missing Value Analysis functions by
following all steps suggested by the IBM SPSS guide. The original dataset
had a significant amount of missing values (about 10-40%). Some variables
imputed are at the scale level as well as the individual scale items. I
spoke to my advisor and she, too, is skeptical about this result.

Any suggestions would be appreciated. Thanks much.




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