[FINA] Olivia is helping Donnie increase his time spent exer…
Olivia is helping Donnie increase his time spent exercising by using a token economy, with a terminal monetary reinforcer delivered once Donnie receives all 15 tokens. Donnie will receive a token for meeting his goal at the end of each week. Olivia collects baseline data and finds that Donnie spends an average of 13 minutes exercising daily. After collecting the baseline data, Olivia sets a goal of 18 minutes per day of exercise for the first week. After meeting the criteria for the first week by working out 18 minutes daily, Olivia increases the time to 25 minutes per day for Donnie to receive the token. Which experimental design is Olivia using?