mixed with robust build

[Kornbrot, Diana]

am trying the robust build in mix, as my data are definitely not normal even when transformed to logit

spss is very generously giving me more df2 than I have subjects

happening on several different data files

can that be right?

___

*Generalized Linear Mixed Models.
GENLINMIXED
  /DATA_STRUCTURE SUBJECTS=pno REPEATED_MEASURES=within1 COVARIANCE_TYPE=UNSTRUCTURED
  /FIELDS TARGET=freq TRIALS=FIELD(Nmax)  OFFSET=NONE
  /TARGET_OPTIONS DISTRIBUTION=BINOMIAL LINK=LOGIT
  /FIXED  EFFECTS=within1 USE_INTERCEPT=TRUE
  /BUILD_OPTIONS TARGET_CATEGORY_ORDER=ASCENDING INPUTS_CATEGORY_ORDER=ASCENDING MAX_ITERATIONS=100 CONFIDENCE_LEVEL=95 DF_METHOD=SATTERTHWAITE COVB=ROBUST PCONVERGE=0.000001(ABSOLUTE) SCORING=0 SINGULAR=0.000000000001
  /EMMEANS TABLES=within1 CONTRAST=NONE
  /EMMEANS_OPTIONS SCALE=ORIGINAL PADJUST=LSD

….

Fixed Effectsa
Source	F	df1	df2	Sig.
Corrected Model	20.745	2	243	.000
within1	20.745	2	243	.000
Probability distribution: Binomial Link function: Logit
a. Target: freq/Nmax

There were 242 subjects

    

please help

Diana

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