Descriptive statistics, including mean, median, standard deviation, and coefficient of variation, and exploratory distributional plots (box-and-whisker plots and nonnal probability plots) were calculated on the individual samples for each treatment group, and probability values (P values) of univariate goodness-of-fit
tests for normality were evaluated (Shapiro-Wilk, Anderson-Darling, Kolmogorov-Smimov; Table 1).
The analysis of covariance structures: Goodness-of-fit
indices, Sociological Methods and Research 11: 325-344.
iii) the goodness-of-fit
of the fitted function for both data sets (MDT vs.
However, as a result of the sensitivity of the traditional chi-square test as it relates to sample size, researchers (Browne & Cudeck, 1993; Steiger & Lind, 1980; Steiger, 1989) suggest using the RMSEA as the principal goodness-of-fit
test for a logistic regression model fitted using survey sample data.
obtained by using the generalized additive model is satisfactory with [r.
Akaike's information criterion (AIC) was used to rank and select the model that achieved an optimal balance between the parsimony of the model and the goodness-of-fit
, where parsimony decreases as the number of parameters in the model increases.
The fact that electric utility rate structures have an important demand component along with energy-use rates suggests which pertinent statistical goodness-of-fit
measures to consider.
Table 6 summarizes the results of the goodness-of-fit
tests for Block 1.
The normed chi-square ([chi square]) goodness-of-fit
test ([chi square]/df), root mean square error of approximation (RMSEA), and various incremental (normed fit index [NFI] and comparative fit index [CFI]), predictive (expected cross-validation index [ECVI], and Akaike information criteria [AIC]) and absolute (goodness-of-fit
index [GFI]) fit indices assessed the quality of the model fit to the data (Clayton and Pett 2011).
At present, however, this major methodological advance can founder due to the lack of reliable goodness-of-fit
tests of the initial model.
With 364 valid samples, 26 observed variables, six endogenous latent variables (n), and one exogenous latent variable ([xi]) (Table 6), the goodness-of-fit
for the theoretical SEM model was examined stepwise.