This is the first experimental research study after the publication of Mechner’s 1994 monograph, The Revealed Operant: A Way to Study the Characteristics of individual occurrences of operant responses, that demonstrated how the “revealed operant” preparation can be used to study the effects of several standard independent variables on resurgence and on noncriterial properties of operant occurrences in human participants. The study was performed at the University of North Texas by Mechner and UNT graduate students, and includes related pigeon data from Anthony Nevin’s laboratory.