I am wondering whether I have a problem regarding attribute independence:
I am studying preferences towards electric vehicles and one attribute is driving range in kilometers. Another attribute is charging time in minutes per 100 kilometers.
Now, in the setup the waiting time for getting a full charge changes with driving range and keeping charging time equal. e.g. when a concept shows 300 km range & 10 min charge time for 100 km, that would make 30 min waiting time. But 600 km range & 10 min charging time makes 1 hour waiting time. So the waiting time changes even though the charging time is the same, because of the attribute range.
Is there a problem with that?