Why is there any expectation bias because you know that A and B are different? That they are different is a given in ABX testing, so that "expectation" is always correct. The task is to determine whether X is A or B, and whether X is A or B is completely random.
ABX is very simple. Listen to A, then listen to B, knowing that it is different from A. Then listen to X and choose whether it is A or B. Repeat N times, with X being randomly A or B each time. Choose correctly a high enough percentage of the time and you can be confident that you didn't choose correctly merely by guessing. ------------------------------------------------------------------------ aubuti's Profile: http://forums.slimdevices.com/member.php?userid=2074 View this thread: http://forums.slimdevices.com/showthread.php?t=98828 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
