The Open Learning Initiative (OLI) is a project that develops open online learning environments based on cognitive science principles and the integration of technology and learning research. OLI aims to simultaneously improve learning outcomes and facilitate learning research. OLI courses include Cognitive Tutors, which provide feedback to students like a human tutor would. OLI collects student data to enable continuous improvement of courses through iterative feedback loops. Studies have found that OLI statistics students learned as much or more than traditional students in half the time spent in class.