What does the "90-90 rule" state regarding retention?

The "90-90 rule" specifically highlights the importance of reinforcement in the retention of information. It states that learners tend to retain only 10% of what they hear after 90 days if that information is not reinforced in some way. This emphasizes the critical role of revisiting and applying knowledge to enhance long-term retention.

The rule underscores the fact that without any additional support or practice, the likelihood of retaining information diminishes significantly over time. This concept aligns with various cognitive theories on forgetting, which suggest that information may fade if it is not integrated into the learner's existing knowledge or if the learner does not actively engage with the material after the initial learning experience. Reinforcement could include methods such as review sessions, practical applications, or ongoing training, all intended to solidify that knowledge.

Recognizing this rule is essential for educators and trainers, as it drives the design of training programs that promote continuous engagement and reinforcement to ensure better retention and recall of learned material.