By: Lolita Paff, PhD
Faculty often tell students to study two hours for every credit hour. Where and when did this rule of thumb originate? I’ve been unable to track down its genesis. I suspect it started around 1909, when the Carnegie Unit (CU) was accepted as the standard measure of class time. [See Heffernan (1973) and Shedd (2003) for thorough histories of the credit hour.] The U.S. Department of Education defines the credit hour as “One hour of classroom or direct faculty instruction and a minimum of two hours of out of class student work each week for approximately fifteen weeks for one semester…” The expectation was the norm when I was in college in the 1980s and more seasoned professors indicate it was expected in the 1970s too.