What research method applies rigorous, systematic procedures to obtain valid knowledge in reading research?

The correct answer is Scientifically Based Reading Research (SBRR) because it encompasses a set of rigorous methodologies aimed at producing valid, reliable, and generalizable findings in the field of reading. SBRR employs systematic procedures, often integrating experimental and quasi-experimental designs, that allow for causal inferences about reading instruction and interventions. This approach prioritizes empirical evidence and statistical analyses to draw conclusions about what works in reading education, making it a cornerstone for evidence-based practices.

Choosing SBRR acknowledges the importance of using scientifically sound methods to understand reading development, instruction, and learning processes. This is vital for educators and policymakers who require evidence to make informed decisions about instructional strategies and curricula. While other research methods, such as qualitative or descriptive research, provide valuable insights, they do not necessarily adhere to the systematic and rigorous standards defined by SBRR, potentially limiting the reliability and applicability of their findings in reading research.