The authors mention in the section on humor and test anxiety that further research is necessary to determine if other mechanisms besides anxiety might mediate the relationship between humor and test...

The authors mention in the section on humor and test anxiety that further research is necessary to determine if other mechanisms besides anxiety might mediate the relationship between humor and test performance. What other mechanisms might mediate this relationship? Design a study in order to explore this relationship. Include hypotheses, conditions, measures, participants, and expected results.