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date: 03 March 2021

Chi-Square (χ‎2) Test (Syn: chi-squared test) 

A Dictionary of Epidemiology

Miquel Porta

A statistical test based on comparison of a test statistic to a chi-square Distribution.7,34,37 The oldest and most common chi-square tests are for detecting whether two or more population distributions differ from one another; these tests usually involve counts of data and may involve comparison of samples from the distributions under study or the comparison of a sample to a theoretically expected distribution. The Pearson chi-square test is probably the best known; another is the ... ...

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