Research review involves the critical evaluation and synthesis of existing research studies on a particular topic or research area. It aims to provide a comprehensive overview of the current state of knowledge, identify gaps or inconsistencies in the literature, and suggest directions for future research. Research reviews can be helpful for researchers looking to build on existing knowledge, policymakers seeking evidence-based practices, or students trying to understand a specific topic in depth. They often involve a systematic search and analysis of relevant literature, followed by a detailed synthesis and discussion of key findings.