Question: A researcher wants to know if people's concerns about the environment might vary as a function of incentives provided for recycling. Students living on a university campus are recruited to participate in a study. Some students are randomly assigned to a group in which they are rewarded financially for all of their recycling efforts for one month. The other students are randomly assigned to a group in which they are assessed a recycling fee based on the amount of materials designated for recycling.
a. Is this research experimental or correlational? Explain.
b. Write a hypothesis for this researcher.