The utility of classroom response systems is not limited to large lecture courses at sprawling universities. When used effectively, they have been shown to have positive outcomes in small classes and at smaller liberal arts colleges as well. Here are some resources that specifically discuss use of clickers in small classrooms, discussion groups and in liberal arts college settings.
This blog shares some ideas of why clickers in small classes are still valuable, particularly in encouraging students not to “hide.”
Joss Ives. 2011. Why I Use Clickers in Small Courses Science Learnification blog.