I recently ran an online experiment with two conditions, participants were assigned into one randomly (groupassignment = random). The result was nearly two thirds of participants in one condition and a third in the other. I've been looking at ways to use group assignment to assure more balanced numbers on my second run. The Inquisit docs says the "subjectnumber" assignment is "based on subject number" but how does this work exactly? Can I use it to essentially alternate between the conditions during assignment, rather than it being random?