# chi-square test

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## chi-square test

n.
A test that uses the chi-square statistic to test the fit between a theoretical frequency distribution and a frequency distribution of observed data for which each observation may fall into one of several classes.

## chi-square test

n
(Statistics) statistics a test derived from the chi-square distribution to compare the goodness of fit of theoretical and observed frequency distributions or to compare nominal data derived from unmatched groups of subjects
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## (or chi′-squared`) test`,

n.
a test that uses the quantity chi-square for testing the mathematical fit of a frequency curve to an observed frequency distribution.
[1935–40]
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References in periodicals archive ?
Chi-square test was done and the association between social networking and the following factors was found to be statistically significant--
The Chi-Square test was applied to identify the relation between health workers / change agent and mass media regarding the contraception family planning.
Data obtained from Chi-Square test in Table 5 shows that there is a significant difference (X2 = 15.691, N = 114, df = 8, p = 0.047) in their ability in assessing and comprehending the information.
Age and trimester wise association with UTI was calculated using the chi-square test. The rest of the variables were 2x2 contingency tables and were tabulated using chi-square test.
Association of depression with age, level of education and duration of infertility was analyzed among infertile women by Chi-square test of independence (association).
The Z-test and chi-square test (Chi-square) are among the most used to verify compliance with Benford's Law (NIGRINI, 2012).
The Chi-Square test is used to check the variances in the learning attitudes of the Principal, teachers and the students.
The other three tests are: the Im, Pesaran and Shin (IPS) test, the ADF-Fisher chi-square test and the PP-Fisher chi-square test.
In Statistical Analysis, "Chi-square test was used to measure the overall difference between DXA and QCT measurements in detecting osteoporotic, osteopenic, and normal patients and the intraclass differences per lumbar level of the two methods.
The first chi-square test (using Yates' continuity coefficient)was between enuresis and psychological abuse; [chi square] (1, n = 211) = 7.396 (p = 0.007) was significant at the p [less than or equal to] .05 level.
Using hierarchical approach to grouping of statistical tests entailing primary focus of study and non-overlapping analysis was espoused; where for instance original articles using Chi-square test in combination with ANOVA were counted as belonging to ANOVA group.
Pearson' Chi-square test at nighty five percent confidence interval was used to analyze the collected data.

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