Yates' correction for continuity involves subtracting .5 from the absolute value of O_j - E_j before these quantities are squared,divided by E_j,and summed across cells.

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This statement accurately describes Yates' correction for continuity, which adjusts the chi-square statistic for potential small-sample bias. The correction involves subtracting .5 from each absolute deviation between the observed and expected cell frequencies before squaring and dividing by the expected frequency, and then summing these adjusted values across all cells. This adjustment accounts for the fact that the chi-square distribution is discrete and that the calculated test statistic may not exactly represent the true distribution of the test variable.

Yates' Correction for Continuity Involves Subtracting