Random Assignment - dan7davis/Lambda GitHub Wiki

Randomly Assigning Learners to Experimental Conditions

1. Locate the learner's edX ID in the DOM

   var domID = analytics.user()._getId();

2. Use Modulo operator to assign learners into cohorts.

   if (userid % 2 == 1) {
            // What learners with ODD userID's should see;
   } else {
            // What learners with EVEN userID's should see
   }

This can be used for assignment for any number of cohorts by changing the value after the % operator to the number of desired cohorts.