How do we make decisions about what and how to teach? Effective organizations make decisions based on some measure of objectivity so we are not constantly pursuing personal agendas of the loudest person or strongest interest group. Several schools I work with have wrestled with the idea of creating “Simple Rules” to help guide these decisions, and they all seem to value the use of data at some point in the process.
Here is a great resource compiled by Youki Terada and posted on Edutopia: 15 research-based studies from 2015 that may have value in areas of your interest. I have not waded through them yet, but am going to look at several in detail as I know they will be of interest to many of the schools I work with.