Although I’ve described CME activities as both “interactive” and “multi-faceted”, I’m not really sure what these things are. I haven’t been able to find any clear definition of either (which is a big limitation of meta-analysis of CME outcomes). For example, what is the minimum criteria to satisfy “interactive”? Is it simply the addition of an audience response system? Or what about “multi-facetedness” (that’s a mouthful)…would a live activity be considered “multi-faceted” once re-purposed into an enduring material? I don’t know. But I do have an idea about how we might start to clarify these terms, which a colleague and I address in the latest JCEHP.