Key questions facing researchers and policymakers are whether teacher education programs are effective in changing teachers’ knowledge and practices and whether such changes, if they occur, increase student learning. Answers to these questions will help determine the characteristics of effective programs for reading teachers.
Because there are multiple layers of causal relationships, encompassing teacher educators to students and including materials and environment, researchers typically focus on a few processes of teaching and learning at a time, usually using a specific method to answer the research question. Research on instructional variables, for example, generally examines the interactions between teachers and students in particular contexts of learning.