topic GENMOD parametrization and TYPE3/"Joing Table" interpretation in Statistical Procedures

GENMOD parametrization and TYPE3/"Joing Table" interpretation

JLNH — Mon, 30 Jul 2018 22:39:39 GMT

I am running GENMOD with REPEATED statement and depending on whether I use /PARAM=EFFECT or PARAM=REF on the CLASS statement I am getting contradictory conclusions form the p value of Chi Sq on the TYPE3/"Join Table" . Which PARM should I select to test a particular effect?

Re: GENMOD parametrization and TYPE3/"Joing Table" interpretation

sld — Tue, 31 Jul 2018 04:46:38 GMT

The documentation may provide the answer to your question: The GENMOD Procedure: Type 3 Analysis. Among other things, it depends upon whether you have missing cells, whether you have additional factors in the MODEL statement, whether you have interactions, etc.

Re: GENMOD parametrization and TYPE3/"Joing Table" interpretation

StatDave — Wed, 01 Aug 2018 14:11:26 GMT

See the bottom half of the "Details: Type 3 Analysis" section of the GENMOD documentation which explains the distinction between the Type 3 tests provided with GLM parameterization and joint tests provided with full-rank parameterizations.

Re: GENMOD parametrization and TYPE3/"Joing Table" interpretation

JLNH — Wed, 01 Aug 2018 21:39:03 GMT

Thank you, I had already read it before I posted y question