Two computational forms of the suppression rule are presented. The first indicates that suppressions occurred when p hat was less than or equal to 0.5 and the following ratio was greater than 0.175: the numerator of the ratio is the standard error of p hat, divided by p hat; the denominator is the negative of the natural logarithm of p hat. The second computational form indicates that suppressions also occurred whenever p hat was greater than 0.5 and the following ratio was greater than 0.175: the numerator is the standard error of p hat, divided by 1 minus p hat; the denominator is the negative of the natural logarithm of 1 minus p hat.

Return to Appendix B, Computational Forms of the Suppression Rule