Many students struggle with statistical concepts such as interaction. In an experimental group, participants took a paper-and-pencil test and then were given training to establish equivalent classes containing four different statistical interactions. All participants formed the equivalence classes and showed maintenance when probes contained novel…

Three students (ages 17, 19, and 21) with moderate disabilities were taught to read and match-to-sample sight words comprising 4 4-member stimulus sets. Student performance indicated that symmetric relations emerged before one-node transitive relations and that one-node transitive relations emerged before two-node transitive relations. Results…