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Re: Multi-Level Modeling/Imputation Concerns

Posted by Maguin, Eugene on May 10, 2013; 1:01pm
URL: http://spssx-discussion.165.s1.nabble.com/Multi-Level-Modeling-Imputation-Concerns-tp5720153p5720164.html

Bruce, thanks. I didn’t know that existed and I see that it is reachable from the spss community link in the help drop-down.



-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Bruce Weaver
Sent: Thursday, May 09, 2013 9:47 PM
To: [hidden email]
Subject: Re: Multi-Level Modeling/Imputation Concerns

From
http://publib.boulder.ibm.com/infocenter/spssstat/v20r0m0/index.jsp?topic=%2Fcom.ibm.spss.statistics.help%2Fmi_analysis.htm:


Procedures That Support Pooling

The following procedures support MI datasets, at the levels of pooling specified for each piece of output.

Frequencies

• The Statistics table supports Means at Univariate pooling (if S.E. mean is also requested) and Valid N and Missing N at Naïve pooling.

• The Frequencies table supports Frequency at Naïve pooling.

Descriptives

• The Descriptive Statistics table supports Means at Univariate pooling (if S.E. mean is also requested) and N at Naïve pooling.

Crosstabs

• The Crosstabulation table supports Count at Naïve pooling.

Means

• The Report table supports Mean at Univariate pooling (if S.E. mean is also
requested) and N at Naïve pooling.

One-Sample T Test

• The Statistics table supports Mean at Univariate pooling and N at Naïve pooling.

• The Test table supports Mean Difference at Univariate pooling.

Independent-Samples T Test

• The Group Statistics table supports Means at Univariate pooling and N at Naïve pooling.

• The Test table supports Mean Difference at Univariate pooling.

Paired-Samples T Test

• The Statistics table supports Means at Univariate pooling and N at Naïve pooling.

• The Correlations table supports Correlations and N at Naïve pooling.

• The Test table supports Mean at Univariate pooling.

One-Way ANOVA

• The Descriptive Statistics table supports Mean at Univariate pooling and N at Naïve pooling.

• The Contrast Tests table supports Value of Contrast at Univariate pooling.

Linear Mixed Models

• The Descriptive Statistics table supports Mean and N at Naïve pooling.

• The Estimates of Fixed Effects table supports Estimate at Univariate pooling.

• The Estimates of Covariance Parameters table supports Estimate at Univariate pooling.

• The Estimated Marginal Means: Estimates table supports Mean at Univariate pooling.

• The Estimated Marginal Means: Pairwise Comparisons table supports Mean Difference at Univariate pooling.

Generalized Linear Models and Generalized Estimating Equations. These procedures support pooled PMML.

• The Categorical Variable Information table supports N and Percents at Naïve pooling.

• The Continuous Variable Information table supports N and Mean at Naïve pooling.

• The Parameter Estimates table supports the coefficient, B, at Univariate pooling.

• The Estimated Marginal Means: Estimation Coefficients table supports Mean at Naïve pooling.

• The Estimated Marginal Means: Estimates table supports Mean at Univariate pooling.

• The Estimated Marginal Means: Pairwise Comparisons table supports Mean Difference at Univariate pooling.

Bivariate Correlations

• The Descriptive Statistics table supports Mean and N at Naïve pooling.

• The Correlations table supports Correlations and N at Univariate pooling.
Note that correlations are transformed using Fisher's z transformation before pooling, and then backtransformed after pooling.

Partial Correlations

• The Descriptive Statistics table supports Mean and N at Naïve pooling.

• The Correlations table supports Correlations at Naïve pooling.

Linear Regression. This procedure supports pooled PMML.

• The Descriptive Statistics table supports Mean and N at Naïve pooling.

• The Correlations table supports Correlations and N at Naïve pooling.

• The Coefficients table supports B at Univariate pooling and Correlations at Naïve pooling.

• The Correlation Coefficients table supports Correlations at Naïve pooling.

• The Residuals Statistics table supports Mean and N at Naïve pooling.

Binary Logistic Regression. This procedure supports pooled PMML.

• The Variables in the Equation table supports B at Univariate pooling.

Multinomial Logistic Regression. This procedure supports pooled PMML.

• The Parameter Estimates table supports the coefficient, B, at Univariate pooling.

Ordinal Regression

• The Parameter Estimates table supports the coefficient, B, at Univariate pooling.

Discriminant Analysis. This procedure supports pooled model XML.

• The Group Statistics table supports Mean and Valid N at Naïve pooling.

• The Pooled Within-Groups Matrices table supports Correlations at Naïve pooling.

• The Canonical Discriminant Function Coefficients table supports Unstandardized Coefficients at Naïve pooling.

• The Functions at Group Centroids table supports Unstandardized Coefficients at Naïve pooling.

• The Classification Function Coefficients table supports Coefficients at Naïve pooling.

Chi-Square Test

• The Descriptives table supports Mean and N at Naïve pooling.

• The Frequencies table supports Observed N at Naïve pooling.

Binomial Test

• The Descriptives table supports Means and N at Naïve pooling.

• The Test table supports N, Observed Proportion, and Test Proportion at Naïve pooling.

Runs Test

• The Descriptives table supports Means and N at Naïve pooling.

One-Sample Kolmogorov-Smirnov Test

• The Descriptives table supports Means and N at Naïve pooling.

Two-Independent-Samples Tests

• The Ranks table supports Mean Rank and N at Naïve pooling.

• The Frequencies table supports N at Naïve pooling.

Tests for Several Independent Samples

• The Ranks table supports Mean Rank and N at Naïve pooling.

• The Frequencies table supports Counts at Naïve pooling.

Two-Related-Samples Tests

• The Ranks table supports Mean Rank and N at Naïve pooling.

• The Frequencies table supports N at Naïve pooling.

Tests for Several Related Samples

• The Ranks table supports Mean Rank at Naïve pooling.

Cox Regression. This procedure supports pooled PMML.

• The Variables in the Equation table supports B at Univariate pooling.

• The Covariate Means table supports Mean at Naïve pooling.



Maguin, Eugene wrote

> Thank you for telling us that information. But you said you imputed
> values for several variables. I missed seeing that you said in your
> original message how many imputations you did. I've never used spss's
> imputation facility because I have mplus. You've got to be running
> genlinmixed. That said, I wonder if genlinmixed will work with imputed
> datasets. I'd guess that somebody on the list has run genlinmixed with imputed datasets.
> Perhaps they will respond. I'd expect that you could run a one level
> multiple regression model using your dataset. You could also run a one
> level ordinal regression model with genlinmixed. But, I wonder if you
> could run a model with mixed. Be interesting to know if the problem is
> with multilevel analyses, in general, or with genlinmixed, specifically.
> Gene Maguin
>
>
>
>
> -----Original Message-----
> From: SPSSX(r) Discussion [mailto:

> SPSSX-L@.UGA

> ] On Behalf Of jlukewood
> Sent: Thursday, May 09, 2013 7:55 PM
> To:

> SPSSX-L@.UGA

> Subject: Re: Multi-Level Modeling/Imputation Concerns
>
> The dataset has 9,000+ cases nested in 240(ish) institutions. The
> model is complex, four primary scales and numerous controls.
> Missingness was only a problem in one scale. I had five variables
> (part of the problematic scale), missingness on these variables ranged
> from 10.7% to 25.0%. I did imputation.
>
>
>
> --
> View this message in context:
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> utation-Concerns-tp5720153p5720156.html
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-----
--
Bruce Weaver
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http://sites.google.com/a/lakeheadu.ca/bweaver/

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View this message in context: http://spssx-discussion.1045642.n5.nabble.com/Multi-Level-Modeling-Imputation-Concerns-tp5720153p5720158.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.

=====================
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=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD