who coined the term learning curve
The term was coined by Hermann Ebbinghaus through studies he performed on himself, and refers to the finding that recall accuracy varies as a function of an item's position within a study list.he continuity effect or lag-recency effect predicts that having made a successful recall, the next recall is likely to be a neighboring item in serial position during the study period. The difference between the two items' serial position is referred to as serial position lag.