You are trying to convince a group of volunteers to show up at the library for their scheduled hours of work. Unfortunately, people tend to come in late on a regular basis, and this makes it difficult to get the books back on the shelves in a timely manner. You decide to give the volunteersa positive reinforcer $.$ Anyone who is on time for $2$ weeks gets a $$5$ gift card from Starbucks. Soon, all of the volunteers are showing up for their shifts right on time.

Which of the following statements are true? Check all that apply.

Offering people regular reinforcement for desired behaviors at work guarantees increased long$-$term productivity.

When people are rewarded for behavior, the satisfaction they get from doing the work increases.

Non$-$financial incentives are just as effective as financial incentives in changing behavior.

Taking away something negative can act as a positive reinforcer.