A variable's measurement level determines the way it is treated in analyses. In the data window, measurement levels appear above the variable names, in the upper right portion of the column header.

The radio mark beside Interval shows the current measurement level. Because B is a numeric variable, it can have either interval or nominal measurement level. Choose Nominal in the pop-up menu to ...

LEM has introduced the DVC 1000-P model for insulated nominal voltage measurements in traction and industrial applications. The device measures a nominal voltage of 1000 V RMS and incorporates ...

Trying to determine accurately a country's gross domestic product is an arduous undertaking, even for developed economies where mountains of raw data and some fancy statistics are readily available.