Create a new temperature variable and relate it to emergency road service. Remember that temperature is a relative scale and that the selection of the zero point is arbitrary. If vehicles are designed to operate best at 65 degrees Fahrenheit, then every degree above or below 65 should make vehicles operate less reliably. To accomplish a transformation of the temperature data that stimulates this effect, begin by subtracting 65 from the average monthly temperature values. This repositions “zero” to 65 degrees fahrenheit. Should absolute values of this new temperature variable be used?

How do I do this in SPSS?? Any answer greatly appreciated