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…

This article proposes a model for the functional analysis of aggression in school-age children and youth. The model incorporates multimodal data collection and data triangulation to generate credible hypotheses regarding the functions of aggression. Key features include operational definitions of target behaviors, examination of the environmental…