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Measures of Fit
PNFI
The PNFI is the result of applying James, et al.’s (1982) parsimony adjustment to the
NFI
where d is the degrees of freedom for the model being evaluated, and is the degrees
of freedom for the baseline model.
Note: Use the \pnfi text macro to display the value of the parsimonious normed fit index
in the output path diagram.
PCFI
The PCFI is the result of applying James, et al.’s (1982) parsimony adjustment to the
CFI:
where d is the degrees of freedom for the model being evaluated, and is the degrees
of freedom for the baseline model.
Note: Use the \pcfi text macro to display the value of the parsimonious comparative fit
index in the output path diagram.
GFI and Related Measures
The GFI and related fit measures are described here.
GFI
The GFI (goodness-of-fit index) was devised by Jöreskog and Sörbom (1984) for ML
and ULS estimation, and generalized to other estimation criteria by Tanaka and Huba
(1985).
()( )
b
d
d
NFIPRATIONFIPNFI ==
d
b
()( )
b
d
d
CFI=PRATIOCFIPCFI =
d
b