Definition: A distribution in which a variable is distributed like the sum of the squares of any given independent random variable, each of which has a normal distribution with mean of zero and variance of one. The chi-square test is a statistical test based on comparison of a test statistic to a chi-square distribution. The oldest of these tests are used to detect whether two or more population distributions differ from one another.

IM GEN only; coord NIM with specific disease or other concept (IM); no qualif; specify geog if pertinent

Other names Chi-Square Test; Tests, Chi-Square; Test, Chi-Square; Distributions, Chi-Square; Distribution, Chi-Square; Chi-Square Tests; Chi-Square Distributions; Chi Square Test; Chi Square Distribution