Two studies investigated the accuracy of eight different interval-based group observation methods that are commonly used to assess the effects of classwide interventions. In Study 1, a Microsoft Visual Basic program was created to simulate a large set of observational data. Binary data were randomly generated at the student level to represent…

Studies of primary education within the UK have shown that small groups can feature within classrooms; however, equivalent research within secondary education remains scarce. Research has established effective group work approaches, yet secondary teachers may encounter difficulties employing approaches tied to parameters embedded within primary…