Glossary:R-Factor: Difference between revisions
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'''<span id="R-Factor">R-Factor</span>''' (also: '''retention factor''' or '''RF''') - the number which says at which [[Glossary:U-Factor|U-Factor]] (i.e. the measure of interval increase) the [[Glossary:Measured_forgetting_index|measured forgetting index]] (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different repetition categories (i.e. the measure of [[Glossary:Stability|memory stability]]). '''R-Factors''' can be seen as a vertical green line on [[Analysis#Forgetting_Curves|forgetting curve graphs]] in [[Glossary:SuperMemo|SuperMemo]]. | '''<span id="R-Factor">R-Factor</span>''' (also: '''retention factor''' or '''RF''') - the number which says at which [[Glossary:U-Factor|U-Factor]] (i.e. the measure of interval increase) the [[Glossary:Measured_forgetting_index|measured forgetting index]] (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different [[Glossary:Repetition_category|repetition categories]] (i.e. the measure of [[Glossary:Stability|memory stability]]). '''R-Factors''' can be seen as a vertical green line on [[Analysis#Forgetting_Curves|forgetting curve graphs]] in [[Glossary:SuperMemo|SuperMemo]]. | ||
Revision as of 15:30, 3 April 2016
R-Factor (also: retention factor or RF) - the number which says at which U-Factor (i.e. the measure of interval increase) the measured forgetting index (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different repetition categories (i.e. the measure of memory stability). R-Factors can be seen as a vertical green line on forgetting curve graphs in SuperMemo.