SCALE Subcommand (RELIABILITY command)
SCALE
defines
a scale for analysis, providing a label for the scale and specifying
its component variables. If SCALE
is omitted, all variables named on VARIABLES
are used, and the label for the scale is ALL.
- The label is specified in parentheses after
SCALE
. It can have a maximum of 255 bytes before being truncated. -
RELIABILITY
does not add any new variables to the active dataset. The label is used only to identify the output. If the analysis is satisfactory, useCOMPUTE
to create a new variable containing the sum of the component items. - Variables named on
SCALE
must have been named on theVARIABLES
subcommand. Use the keywordALL
to refer to all variables named on theVARIABLES
subcommand.
Example
RELIABILITY VARIABLES = ITEM1 TO ITEM20
/SCALE (A) = ITEM1 TO ITEM10.
RELIABILITY VARIABLES = ITEM1 TO ITEM20
/SCALE (B) = ITEM1 TO ITEM20.
- Analyses for scales A and B both use only cases that have complete data for items 1 through 20.