chi-square test

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chi-square test:

see statisticsstatistics,
science of collecting and classifying a group of facts according to their relative number and determining certain values that represent characteristics of the group.
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chi-square test

[′kī ¦skwer ′test]
(statistics)
A generalization, and an extension, of a test for significant differences between a binomial population and a multinomial population, wherein each observation may fall into one of several classes and furnishes a comparison among several samples instead of just two.
References in periodicals archive ?
A chi-squared test was run to determine the relationship between the independent variable of educational level with the dependent variable of PSA test awareness.
The chi-squared test produced the following result (Tab.
Changes in resistance trends over time were assessed with chi-squared tests using Stata 10.
For this set of data, you might use a chi-squared test to find out if these four groups are the same.
Consultant Stewart makes sure those with limited exposure to statistics get a lot of practice here and includes answers to his exercises as he covers population and samples, random sampling, presenting data, frequencies, percentages, proportions, rates, types of data, mean, median, mode, centiles, standard deviation, standard error, normal distribution, confidence intervals, probability, hypothesis tests and P-values, the t-test, parametric and non-parametric tests, correlation and regression, the chi-squared test and topics related directly to epidemiology such as measuring association, measuring disease frequency, using case-control and cohort studies and performing randomized controlled trials.
A chi-squared test for independence found a significant difference between responses to three survey questions asked after each of the three treatments at the 95% confidence level.
The chi-squared test shows that this degree of variation is probably not the result of chance variations, and we should indeed conclude that Chronicles is significantly sparser in verbs than Kings or Samuel.
Testing hypotheses about the equality of population proportions: the chi-squared test