Glossary:Retention: Difference between revisions
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;<span id="Retention">retention</span> | ;<span id="Retention">retention</span> | ||
:proportion of knowledge retained in memory at any given time. '''Retention''' is greater than 100% minus the [[Glossary:Forgetting_index|forgetting index]]. The forgetting index refers to the probability of forgetting at the moment of a [[Glossary:Repetition|repetition]] while '''retention''' refers to the average recall probability between the last and the next repetition. For an exact formula linking the [[Glossary:Forgetting_index|forgetting index]] and the '''retention''' see: [ | :proportion of knowledge retained in memory at any given time. '''Retention''' is greater than 100% minus the [[Glossary:Forgetting_index|forgetting index]]. The forgetting index refers to the probability of forgetting at the moment of a [[Glossary:Repetition|repetition]] while '''retention''' refers to the average recall probability between the last and the next repetition. For an exact formula linking the [[Glossary:Forgetting_index|forgetting index]] and the '''retention''' see: [https://super-memory.com/articles/theory.htm#Retention Theoretical aspects of SuperMemo]. '''Retention''' equals 100% minus the [[Glossary:Forgetting_index|forgetting index]] only when measured on [[Glossary:Item|items]] repeated on a single day (e.g. as displayed in '''[[Toolkit menu|Toolkit]] : [[Calendar]]''') | ||
Latest revision as of 03:02, 14 August 2020
- retention
- proportion of knowledge retained in memory at any given time. Retention is greater than 100% minus the forgetting index. The forgetting index refers to the probability of forgetting at the moment of a repetition while retention refers to the average recall probability between the last and the next repetition. For an exact formula linking the forgetting index and the retention see: Theoretical aspects of SuperMemo. Retention equals 100% minus the forgetting index only when measured on items repeated on a single day (e.g. as displayed in Toolkit : Calendar)