Pearson Chi2. The pearson chi squared goodness of t test is a diagnostic tests implemented in stata as a post estimation command estat gof to be used after logit logistic probit and poisson commands. Moreover the group option yields the related hosmer lemeshow test.
The chi square test is intended to test how likely it is that an observed distribution is due to chance. This tutorial explains how to perform a chi square test of independence in stata. The p value obtained from chi square test for independence is significant p 0 05 and therefore we conclude that there is a significant association between treatments treated and nontreated with treatment outcome cured and noncured chi square χ2 goodness of fit test.
Pearson s chi squared test displaystyle chi 2 is a statistical test applied to sets of categorical data to evaluate how likely it is that any observed difference between the sets arose by chance.
Exact displays the significance calculated by fisher s exact test and may be applied to r cas well as to 2 2 tables. Chi2may not be specified if aweights or iweights are specified. The number in brackets after pearson chi2 is the degrees of freedom for this test which is 4 in this case. Moreover the group option yields the related hosmer lemeshow test.
