goodness of fit

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good·ness of fit

(gud'nes fit),
Degree of agreement between an empirically observed distribution and a mathematical or theoretical distribution.


1. an episode characterized by inappropriate and involuntary motor activity. In humans there are similar psychic disturbances as well. The most common manifestation is a convulsion; similar involuntary movements of restricted parts of the body would also fit this description. Called also convulsion, seizure.
2. the quality of similarity between two sets of data.

goodness of fit
the degree of similarity between two sets of data, e.g. the frequencies of two attributes; a test for the significance of the similarity.
References in periodicals archive ?
Summary results of goodness of fit criteria for data mining algorithms tested for estimating CCW trait are given in Table I.
Comparison of multiple linear regression and artificial neural network models goodness of fit to lactation milk yields.
Each distribution has been fitted to both of our data sets and goodness of fit criteria is calculated including log-likelihood value as well as chi- square, SSE and SAE values.
Significant tests and goodness of fit in the analysis of covariance structures, Psychological Bulletin 88: 588-606.
Goodness of Fit Indexes for Analyzed Models Index Verbal-Manipulative 2-Factor 2-factor GAI [chi square] 74.
The results of goodness of fit in Gompertz and Logistic growth curve models for female and male broilers of GBJA S757 genotype are presented in Table5.
The goodness of fit curves for all the four segments are illustrated in Figures 1(a)-1(d), 2(a)-2(d) and 3(a)-3(d).
Chi-squared goodness of fit tests with applications.
To realize how strong and accurate the relations in table 2 are, goodness of fit indexes and mean squared error (MSE) is employed.
Two additional descriptive measures of goodness of fit presented in Table 3 are R2 indices, defined by Cox and Snell (1989) and Nagelkerke (1991), respectively.
Adequate support was found for the hypothesized model in terms of fit statistics: Normed Fit Index (Bentler & Bonett, 1980); Bentler-Bonett Nonnormed Fit Index (Bentler & Bonett, 1980); Comparative Fit Index (Bentler, 1990); Incremental Fit Index (Bollen, 1989); Goodness of Fit Index (Joreskog & Sorbom, 1988); Adjusted Goodness of Fit Index (Joreskog & Sorbom); or Root Mean Square Error of Approximation (Steiger, 1990).