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From |
Richard Goldstein <richgold@ix.netcom.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Second Repost "Simple Cases of Multi-Level Models" |

Date |
Mon, 10 Jun 2002 10:22:36 -0400 |

Since the quote is from a talk I gave, I note to the list that in private email, prior to Sam writing to Statalist, I told him that I thought he had a 3-level model (there are 2 time points). Rich Goldstein SamL wrote: > > My question concerns the XT series of models in STATA. My question is > whether the XT series allows one to treat second-level variation as > something to study, rather than simply as a nuisance to be controlled. > Given my interest in the former, I read with interest the > presentation/paper titled "Simple Cases of Multi-Level Models" by Richard > Goldstein at a STATA Users Group Conference, which seemed to suggest that > the XT series may meet my needs. I presume attending would have clarified > my question, but given that I was not there I have a question. > > My question probably flows from the many different meanings that are > floating around for the terms that are in use in different disciplines. > I am specifically interested in the statement on a slide from the talk, > that reads "I know that the following is true for at least some of the XT > models and I believe it is true for all of them: they can be used to > analyze any two-level random intercept model." > > My aim is to estimate a model of the following form: > > Pr(Y_ij=1) = b1_j White1_ij + b2_j Black1_ij + b3 X1_ij + b4 X2_ij + e_ij > b1_j = g01 + g11 Z1_j + g21 Z2_j + d1 > b2_j = g02 + g12 Z1_j + g22 Z2_j + d2 > b3_j = g03 > b4_j = g04 > > In this model the Zs are measured at the higher level; there are a few > dozen higher-level entities and lots and lots of lower-level units. The > aim is to estimate the "effect" of Zs on the black and white intercepts. > > That's the set-up. The questions: can this be estimated using the "XT" > models in STATA? And, if so, how? > > Thanks for any references to GLLAMM, but I am familiar with GLLAMM. Any > insights on this in terms of the XT series of models are greatly > appreciated. > > Thanks a bunch. > Sam > > * > * For searches and help try: > * http://www.stata.com/support/faqs/res/findit.html > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Second Repost "Simple Cases of Multi-Level Models"***From:*SamL <saml@demog.berkeley.edu>

**References**:**st: Second Repost "Simple Cases of Multi-Level Models"***From:*SamL <saml@demog.berkeley.edu>

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