Vicki - Some recommended bast practices for participant recruitment
-Expect a 25% cancellation/no-show rate. So for every four slots you
need to fill, you need to recruit 5 people. You can schedule extra
slots or use "floaters" -- people scheduled to serve as
substitutes overlapping with specific time slots. If you're running
ahead of schedule you can include the floaters as well.
-Remind recruited participants ahead of time (week before, then day
before). Tell people to come in 15 minutes before the actual testing
slow and then call them on their cell phones if they are not there at
-Pay more money. Increase your participant incentive by 10-20% can
be a cost-effective way to improve show-up rates.