RE: [R] Structural equation models with R

From: André TavaresCorrêa Dias <atcdias_at_biologia.ufrj.br>
Date: Thu 10 Mar 2005 - 22:13:40 EST

Dear John,
Thanks very much! I don’t know how I didn’t see this before. I checked a
thousand of times…
There is one more thing that I can not understand. What are the possible reasons for problems on calculation of confidence interval for RMSEA? For the same model I sent before (after correction of the variable name) the lower CI output was NA:

Model Chisquare = 10.824 Df = 13 Pr(>Chisq) = 0.62558  Goodness-of-fit index = 0.91656
 Adjusted goodness-of-fit index = 0.76895  RMSEA index = 0 90 % CI: (NA, 0.15652)  BIC = -60.425 I have other models with the same behavior, even when the estimative of RMSEA is different from zero.

Model Chisquare = 15.165 Df = 14 Pr(>Chisq) = 0.367  Goodness-of-fit index = 0.89038
 Adjusted goodness-of-fit index = 0.71811  RMSEA index = 0.053558 90 % CI: (NA, 0.19141)
 BIC = -61.564 Thanks and all the best.
André



André Tavares Corrêa Dias
Laboratório de Ecologia Vegetal
Departamento de Ecologia - IB
Universidade Federal do Rio de Janeiro
Ilha do Fundão, CCS
Rio de Janeiro, RJ. Brasil
CEP 21941-590 CP 68020
Tel. (21)2562-6377

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Mar 10 22:51:46 2005

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