When analyzing data from a 2×2 contingency table,a correction factor has been suggested so that _______.
A)the sampling distribution better approximates the chi-square distribution
B)the power to reject the null increases
C)the degrees of freedom are correct
D)all of these

Question

Quizplus · Accepted Answer

The correction factor is known as the Yates' correction and it is used to adjust the chi-square statistic in 2×2 contingency tables. It reduces the discrepancy between the observed and expected frequencies and provides a better approximation of the chi-square distribution. The correction is necessary when the sample size is small, which can lead to inaccurate results if not accounted for. The correction has no impact on the power or the degrees of freedom.

When Analyzing Data from a 2×2 Contingency Table,a Correction Factor