When investigating the impact of predictor variables on an outcome variable or measuring the effectiveness of an educational program, educational researchers and program evaluators cannot ignore the possible influences of interaction effects. The purpose of this paper is to present a procedure that educational researchers can follow in order to…

This paper presents a model for qualitative and quantitative evaluation research that has been used in a preliminary way in evaluating a teacher education program. The model is based on three underlying constructs which are hierarchical in nature: (1) the assumption that the question of interest always must dictate the structure of the research…

The paper is a methodological inquiry into the interpretation of qualitative data. It explores a grounded-theory approach to the synthesis of data and examines, in particular, the construction of categories. It focuses on ways of organizing and attaching meaning to data, as research problems embedded in a cultural context are explored. A…