Re: Multiple Imputation

Posted by therp on
URL: http://spssx-discussion.165.s1.nabble.com/Multiple-Imputation-tp4994372p5723125.html

Big thank you to both of you Art and Rich. I'm implementing your
advice/ideas right now.

I have one question left though:

If my items are not categorical, meaning i have (unfortunately only) one
interval and am measuring a continuous construct (prejudice), can I use
the supposedly less biased, than mean substitution, Expectation
Maximization? In SPSS, I could drag my items into the window for
"continuous" variables and get estimates that look fine (of course
seperately for the 39 items, the numerical count and the likert scale
item).
Also in that way, I could compute LIttle's MCAR test.

What do you think? I would like to use a less biased imputation method.
I understand that MI is the best, but I don't feel comfortable with it
yet (running many many analyses with many data sets until they can be
finally pooled in the last step, the regression).