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$\begingroup$ Hi and thanks for your suggestions. SPSS doesn't do permutation testing, but, the GLM sounds like something that could work for me. My values are frequencies (Hz). I can run a generalized linear model but in SPSS I am a bit overwhelmed by settings. I have set it up so I am running a poisson loglinear model, the response (DV) is my frequency values, the predictor is what condition (1 2 3 or 4). But SPSS gives me a couple of other choices - one tab is labelled 'model' and another is labelled 'EM means' I don't know what I'm supposed to do here... Thanks again for any help, Roddy. $\endgroup$

Roddy G
– Roddy G

2012-11-09 15:20:26 +00:00
Commented Nov 9, 2012 at 15:20

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