Which type of research source typically provides summarized findings from multiple studies?

Literature reviews are a comprehensive type of research source that synthesize and summarize findings from multiple original studies on a particular topic. They aim to provide an overview of the current state of research, highlighting trends, gaps, and commonly supported conclusions among various studies. By collating data and insights from a wide range of sources, literature reviews allow researchers, practitioners, and policymakers to gain a clearer understanding of a subject without reading each individual study in depth. This makes them an essential resource for those looking to grasp the broader context and implications of research findings in a specific area.