Which of the following is true about the chi-square statistic?
A) Expected and observed frequencies or proportions are compared.
B) Interval level data are used for all variables.
C) Post hoc testing is used to identify areas of group differences.
D) Results are reported in terms of differences between group means.

Question

Quizplus · Accepted Answer

The chi-square test of independence examines the frequencies of observed data and compares
them with the frequencies that could be expected to occur if the data categories were actually independent of each other.
The data do not have to be interval level.
Post hoc analyses can be used to identify the categories where the differences lie.
Results are reported as differences from expected frequencies.

Which of the Following Is True About the Chi-Square Statistic