Standardizing Data

The Standardization of Values dialog box (displayed when you select Standardize from the Data tab or menu) contains options to standardize all values of the selected variable(s) in the active spreadsheet. While processing data from these variable(s), the currently specified case selection conditions and case weights are taken into account.

In standardization, all values of selected variables are replaced by standardized values, which are computed as follows:

Std. Score = (raw score - mean)/Std. deviation

Use the Standardization of Values dialog box to select the variable to be standardized. If the standardized variable has any text labels, the corresponding numeric values (assigned to the text labels) will be adjusted accordingly. Otherwise, after standardization, most values would "lose" their alphanumeric components. The first six significant digits will be used as numeric equivalents of text labels.

See also: Standardize Block - Fill/Copy Down, Standardize Block - Fill/Copy Right, Standardize Block - Fill Random Values, Standardize Block - Standardize Columns, Standardize Block - Standardize Rows.