Unit of Assignment

Individual Assignment

When selecting individual assignment, each included participant will be randomly assigned a condition.

Group Assignment

Group assignment references one or more of the group types that have been previously defined in the Context Metadata. For the selected group type, each group will be randomly assigned a condition, and each participant in a group will receive the same condition as the rest of the group.

Within-Subjects Assignment

In within-subjects assignment, every time a participant visits a decision point (and /markExperimentPoint is called), the participant is eligible to receive a new condition. There are different options for determining the order of such conditions for within-subjects experiments. Random will randomly select a condition each time the decision point has been marked. Random Round Robin will randomly order the experiment conditions, and when it runs out of conditions, will create a new random ordering. Ordered Round Robin will deliver the same sequence of conditions over and over again.