chi-square statistic


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chi-square statistic

[′kī ¦skwār stə‚tis·tik]
(statistics)
A statistic which is distributed approximately in the form of a chi-square distribution; used in goodness-of-fit.
References in periodicals archive ?
The second algorithm involves taking several samples from each population and pooling them to form one sample per population from which the standard Pearson chi-square statistic is then calculated.
Table III shows the frequency table; the chi-square statistic (17.
This model would be confirmed by insignificant chi-square statistics for each of the 10 ads, indicating no significant difference between the modeled and observed covariance matrices.
This variability or heterogeneity may also make use of TABULAR DATA OMITTED the chi-square statistic inappropriate.
The chi-square statistic can be defended as a conventional and well understood metric that summarizes cell-by-cell information about the empirical success or failure or any candidate specification.
7) The Chi-square statistic in column 9 tests the null hypothesis that the normalized coefficient estimates in the seven specific RATE equations (columns 2-8) are all equal to the corresponding coefficient in the aggregate equation (column 1).
Significance tests of the null hypothesis of random association between genes can be performed by alternative but equivalent statistical methods such as the approximate significance test based on the normality of the D sample estimate or the chi-square statistic for association in a 2 x 2 contingency table (Hill, 1974; Brown, 1975; Hedrick et al.
98 (Nigerians) (4), analyses were based on the Satorra-Bentler scaled chi-square statistic (S-B[chi square]; Satorra & Bentler, 1988), rather than the usual ML[chi square] statistic as it serves as a correction for [chi square] when distributional assumptions are violated.
The Pearson chi-square statistic for the logistic regression model of [Y.
A scheme for flagging dichotomous items for negligible, intermediate, or large DIF takes into account both the significance of the Mantel-Haenszel statistic and the effect size of the log-odds ratio; an alternative scheme developed specifically for polytomous items utilizes Mantel's chi-square statistic (Mantel, 1963) and the Standardized Mean Difference (e.
The data suggest statistically significant differences between the distribution of males who receive free or reduced lunch, males who receive no lunch discount, females who receive free or reduced lunch and females who receive no lunch discount with respect to qualities most admired (as the Chi-square statistic (3) equaled 18.