goodness of fit


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goodness of fit

[¦gu̇d·nəs əv ′fit]
(statistics)
The degree to which the observed frequencies of occurrence of events in an experiment correspond to the probabilities in a model of the experiment. Also known as best fit.

goodness of fit

the degree to which observations in a data set conform to an expected distribution predicted from a model. See also CHI SQUARE2 ).
References in periodicals archive ?
The measurement model based on the extraction of four reliable factors from the exploratory factor analysis has been examined for its goodness of fit and further validation by confirmatory factor analysis.
Hosmer-Lemeshow goodness of fit for PIM and PIM 2 cohorts Group PIM * (N=962) Mortality Expected Observed risk range deaths deaths (%) 1 0.
The goodness of fit statistics are varied; some of the indicators suggest a reasonable fit with the model, and some of them do not.
A confirmatory factor analysis was conducted to assess the goodness of fit of this modified GRP scale in the China sub-sample.
The covariance matrix was used among/between the items as a start to the data analysis and different indices were used to check the goodness of fit of the model.
74 Intention Purchase 1 to 3 Months Purchase More than One Year Source: Field data Table-2: Goodness of Fit Indices on Structural Linear Model Name of Index Judgement Literary Value Contribrution Normed Fit Index >0.
The goodness of fit of the models was checked using Chi-Square tests with 5% level of significance.
A variety of fit indexes were used to test the adequacy of both a measurement and a structural model of the data: the Goodness of Fit Index (GFI; Joreskog & Sorbom, 1989), the Comparative Fit Index (CFI; Bentler, 1990), and the Root Mean Square Error of Approximation (RMSEA; Steiger, 1990) were used to evaluate the overall model fit.
A one sample chi-square goodness of fit test was utilized to test the null hypothesis that the population frequencies of each question set within section four mentioned above happen by chance and in no preferred or specified order.
Bold values indicate a strong fit between the models for that specific goodness of fit measure.