From work to education, much of what we do is measured in individual achievement and assessment of individual outcomes. Job performance, grade-point averages, final examinations, so many things are individually based. For some time now, collaboration has become much more important and group-based work the norm. But we really haven’t figured out how to assess group effort apart from the sum of individual efforts. In my experience, group assessments run up against some very strong barriers. Can we overcome them? Perhaps one experience from my educational background provides a baby step forward.