Being cognizant of the additional testing require to run a survey on mobiles vs. PCs, the extra time required to complete a survey on a mobile vs. a PC, and the tendency to experience higher drop rates on a mobile vs. a PC should help researchers complete projects successfully while minimizing sampling effects based on the device itself.

Don Phipps Moderating a Focus Group At a Trade Conference In Front Of a Live Audience The link below is of a focus group I did in Kansas City at a trade conference.  While the techniques I could employ in the group were limited to direct questions (no easel, no...