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SDV is a logical format. The standard setting is NSDV (false).

SDV instructs CL to compute and print standard deviations for a table.

The standard deviation is intended to reflect that deviation from the mean within which two-thirds of the sample should fall. Only one in twenty should be further than twice the standard deviation from the mean.

The standard deviation is the square root of the variance. The variance is the sum of the squares of the differences from the mean divided by n minus 1.

Format SDV takes effect when a number is used as the rows or for row questions with label control <V> (value) set or list all rows tables.

See also formats:

AVG Averages or mean scores

DPS Decimal Places for Statistics (not averages)

POP Entire population interviewed.

SER Standard Errors