In simple words, forgetting curve is exponential because memory loss is rapid and huge within the first few days of learning. After which, the declination of memory retention slows down again. However, it drops rapidly to 40% within the first dew days. Memory retention is 100% at the time of learning any particular piece of information. The results thus obtained were plotted in a graph, which is now referred to as the forgetting curve.Įbbinghaus found the forgetting curve to be exponential in nature. Ebbinghaus memorized different nonsense words such as “WID”, “ZOF and “KAF”, and then he tested himself to see if he could retain the information after different time periods. Ebbinghaus conducted a series of tests on himself, which included memorization and forgetting of meaningless three letter words.
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