A conservation psychologist is interested in increasing the use of public transportation in her community. Working with the local transit authority, the research team puts into place a new program wherein community members receive a lottery entry each time they ride the bus. After one month, there will be a drawing for three $50 gift certificates to local businesses. After the drawing, the bus drivers stop administering lottery entries for one month. Then, they reintroduce the lottery program for another one-month period that, again, ends with a drawing for three $50 gift certificates. The researchers then compare the average daily ridership rate during Month 1, Month 2, and Month 3. This is an example of which design? Group of answer choices Interrupted time-series design Stable-baseline design Multiple-baseline design Reversal design