Re: st: Multiple Imputation

[Richard Williams <richardwilliams.ndu@gmail.com>]

I suspect you want to use the -mi import flong- command. See the 
help. I also suspect you don't want to delete the original cases.
At 01:53 PM 8/15/2013, Bobby Jo otto wrote:
> 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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-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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