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Re: st: Multiple Imputation


From   bobbyjootto <[email protected]>
To   "[email protected]" <[email protected]>
Subject   Re: st: Multiple Imputation
Date   Thu, 15 Aug 2013 15:17:49 -0400

Thank you. I will see if that works. 

Sent from my iPhone

On Aug 15, 2013, at 4:01 PM, Richard Williams <[email protected]> wrote:

> 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
> OFFICE: (574)631-6668, (574)631-6463
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> 
> *
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*
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