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st: Multiple Imputation
From
Bobby Jo otto <[email protected]>
To
[email protected]
Subject
st: Multiple Imputation
Date
Thu, 15 Aug 2013 14:53:08 -0400
Hello,
I have a question regarding multiple imputation. I conducted multiple imputation in SPSS and then transferred the data back to Stata. After the imputation, my n=88,800, which includes the original data set plus the 5 imputations. When I delete the original values (drop in 1/14,800) I'm left with a sample size of 74,000.
My problem however, is that when I set Stata to recognize that my data is imputed (mi set flong; mi set M=5), it multiplies 74,000 by 6 which then gives me a sample size of 444,000 (each imputed data set is multiplied by 6). Thus, each specific respondent has data 30 different times.
Example of data set: (up to 30)
imputation_ aid
1 111111
1 111111
5 111111
4 111111
4 111111
3 111111
4 111111
1 111111
2 111111
Can anyone tell me exactly what I am doing wrong?
Thanks in advance!
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