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Re: st: Multiple Imputation
From
Richard Williams <[email protected]>
To
[email protected], [email protected]
Subject
Re: st: Multiple Imputation
Date
Thu, 15 Aug 2013 15:01:01 -0500
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
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
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