Next steps

So far, we've covered who to recruit, how to find participants, and what to inform them about. These steps will yield a list of potential study participants. Note that all of the information about the participants so far has been self-reported by the participant, and their claims have not been confirmed.

Re-screening participants

Re-screening by using means other than self-reporting may be desirable in some cases. It can be a tricky situation, because of both feasibility and the risk of damaging the rapport with the participants.

Re-screening on key profile aspects may not work if they are linked to habits or interests. If a key profile attribute is that coffee lovers drink more than four cups of coffee a...