Scramble Seed Keyword
I parameter alternative. See Scrambling. N is used as a seed to the random number routines that determine the movement of items in a scramble. If there is no <ScrambleSeed> N is determined from the current time effectively yielding a different scramble each time DMDX is run.
This is the same random number generator used
for the random() function in the
keyword so if you want random numbers there you'll want to randomize the random
number generator after the scramble, see