Table 4-21. Goodness of fit indices for simple mediationall) one-occasion structural model estimation at time 1
Physical function Social function Emotional function
~2 761.80 488.75 517.42
Df 20 14 28
p < .00 <.00 < .00
RMSEA .16 (p =.00) .16 (p =.00) .11 (p =.00)
NFI .55 .46 .69
RFI
IFI
TLI
CFI
AIC
Test of 2 difference a
X2 diff
df diff
-.01
-.01
.55
829.80
698.35
9
-.38
.47
-.39
.46
548.76
480.42
9
.00
.41
.71
.42
.71
591.41
348.36
9
.00
Note: df= degree of freedom; NFI = normed fit index, RFI = relative fit index, IFI = incremental fit index, TLI = Turker-Lewis index,
CFI = comparative fit index, AIC = Akaike; RMSEA = Root mean square error of approximation. a Test of chi-square
difference relative to Time 1 measurement model.