We all have a vested interest in getting better at decisions.  After all, in most knowledge organizations, your product is decisions. The way to test the quality of your decisions, whether individually or organizationally, is by testing the process by which they are made. The best way to do that, according to the dean of biases and Nobel winner, Daniel Kahneman, is to use a decision journal. Article: How a Decision Journal Changed the Way I Make Decisions (Template Included).