Can anyone please let me know if it's common practice to pay subjects per EMA (eg. $1/EMA)? or per day accelerometer is worn? thx! *evidence?

23 February 2017 1 2K Report

want to make sure that small token of appreciation is not confused with contingency management. thx!

It certainly depends on how many questions and how frequently you are asking your participants. Among EMA studies conducted in youth, I've seen people providing incentives from $20/day to $20/week.

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