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From |
Richard Williams <richardwilliams.ndu@gmail.com> |

To |
statalist@hsphsun2.harvard.edu, Statalist <statalist@hsphsun2.harvard.edu> |

Subject |
Re: st: Multiple Imputation (MI) |

Date |
Tue, 14 May 2013 00:40:32 -0500 |

This is a very good source: <http://www.ssc.wisc.edu/sscc/pubs/stata_mi_intro.htm>http://www.ssc.wisc.edu/sscc/pubs/stata_mi_intro.htm

Also, several good references are listed at <http://www.ssc.wisc.edu/sscc/pubs/stata_mi_readings.htm>http://www.ssc.wisc.edu/sscc/pubs/stata_mi_readings.htm White, Royston and Wood 2011 seems very good to me.

http://www.stata.com/statalist/archive/2009-02/msg00602.html http://www.stata.com/statalist/archive/2009-02/msg00613.html At 09:06 PM 5/13/2013, Saul G. Alamilla wrote:

Dear Statalist Members, I have some questions pertaining to multiple imputation. I have a dataset of about 10,000 individuals and need to impute some variables withconsiderable missingess (MAR). I am using the ice and mi commands inStata 11.2SE. I plan to include substantive interactions terms (mean centered) in the imputation model. My questions/concerns are as follows: 1) Does mean centering need to be performed before imputing data? If so, because after imputation the "centered" means will almost surely not be 0, would it be advisable to center yet again at that point? 2) Is there a satisfactory way to impute interaction terms? Arethere any specific references regarding imputation and interactionterms (otherthan articles such as Graham, 2009, which deals with interactions in passing)? One approach would be to impute each of the input variables individually and then take their product, but the imputing of the input variables is especially delicate inasmuch as nonlinearities are introduced. 3. On a side note, are they any satisfactory ways to perform MI in Stata with clustered data. I am aware of programs such as PAN (Schafer 2001, Schafer & Yucel 2002), but am looking for MI commands or programs in Stata geared for clustered/nested data, OR acceptable and manageable strategies for imputing with such data. Thanks in advance, Saul * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

------------------------------------------- Richard Williams, Notre Dame Dept of Sociology OFFICE: (574)631-6668, (574)631-6463 HOME: (574)289-5227 EMAIL: Richard.A.Williams.5@ND.Edu WWW: http://www.nd.edu/~rwilliam * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Multiple Imputation (MI)***From:*"Saul G. Alamilla" <sgalami@yahoo.com>

**References**:**st: Multiple Imputation (MI)***From:*"Saul G. Alamilla" <sgalami@yahoo.com>

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