Since 1967, my work has focused on identifying and using a unit of analysis for knowledge development. The resulting “mode of practice” was defined and analyzed in my 2017 book published by Routledge. Research and application of the unit resulted in dozens of discoveries, innovations, and interpretive precedents. I was awarded a James McKeen Cattell Fund Fellowship in 1997-98 for furthering this work. After teaching psychological research for decades, my southern Appalachian students achieved Chapter of the Year of the Association for Psychological Science, in which I am a Charter Member. Numerous educational institutions have applied this work to create developmental assessments of learning.