10/03/02
11
Tables (cont’d)
•Cell suppression: 
–Insert zero in cells containing “small” values. 
–After suppressing a value in a row, you must also suppress values in one or more other row(s) and column(s) so that the suppressed value can not be obtained by subtraction from the row/column totals.
–Appropriate statistical methods must be used (see 1994 report by Subcommittee; especially see “primer” in Chapter 2).