This article Carnegie Units Should Go-Robert Rothman-1998 (subscription required) which appeared in Education Week, November 2, 1988 said in part “A national panel of state board members last week called for scrapping a time-honored feature of the American education system: graduation requirements based on the so-called Carnegie units, or the “seat time” students spend in various subject areas. It urged that policymakers replace the units with systems that require students to meet defined performance standards. This was the final implementation of the long-planned Outcomes Based Education based on Benjamin Bloom/Skinner’s mastery learning method which is vital for value change and work force training