Editing counts on the randomizer

Question

I would like to edit counts on the randomizer to correct for any unequal distributions as a consequence of participants not fully completing the survey. Details of how to do this are here:https://www.qualtrics.com/support/survey-platform/survey-module/survey-flow/standard-elements/randomizer/#EditingCountsHowever, I am not clear from these instructions exactly how to make it work. Let's say we have four conditions and need 100 participants, 25 in each condition. That is, we have 4 elements and want to present 1 of these 4 elements to each participant, such that each element is seen by an equal number of participants. We look at the element counts some time during data collection and see that the numbers are unequal because some people assigned to Conditions 2 and 3 ended the survey early:Cond. 1: 11Cond 2: 8Cond 3: 3Cond 4: 11What are the calculations involved in deciding what changes to make to the counts for elements Condition 2 and Condition 4 so that they 'catch up' and we end up with 25 participants in each condition?Many thanks in advance.

TomG · Accepted Answer

ruthjlee1 ,Reducing by the shortfall will effectively put them back to even.Caveats:They may go out of balance again as you continue to field.Some of the 'shortfall' could be partials and if those partial come back and complete then you will have over adjusted by that amount.You could put quotas of 25 on the 4 conditions that only count completes. Then you could terminate (overquota) those that get assigned to full conditions.

TomG · Answer

If the current randomizer counts are all equal, reduce the Condition 2 count by 3 (11-8) and the Condition 3 count by 8 (11-3).

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