Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
This exercise helps to illustrate “concealment of allocation”—a concept that many of our students struggle to separate from blinding.
METHOD: Before your session, get envelopes and some lollies—enough for each member of the group—and divide the envelopes into 3 piles. In a third …