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Ebbinghaus Forgetting Curve Retention Rates
A line graph representing the Ebbinghaus forgetting curve shows the relationship between elapsed time since learning and memory retention percentages. The data demonstrates a rapid initial decline in retention that eventually levels off. The approximate data points are: 100% retention at 0 minutes, 55% at 20 minutes, 40% at 60 minutes, 37% at 9 hours, 30% at 24 hours, 25% at 48 hours, 20% at 6 days, and 10% at 31 days.

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Psychology @ OpenStax
Ch.8 Memory - Psychology @ OpenStax
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Focuses of Research on Memory
Initiation of Memory Research
Types of Memory
A student studies for an exam by passively re-reading their notes for several hours. The next day, they recognize the questions on the exam but cannot recall the specific answers. Based on the fundamental processes of memory, which stage was most likely the weakest, leading to this failure?
Analyzing a Memory Failure
Which of the following best defines the concept of memory in psychology?
Power of Suggestion
Unintended Police Cues and Eyewitness Misidentification
Eyewitness Memory Corruption
Effect of Leading Questions on Memory
False Recall of Events
Repression of Traumatic Memories
Loftus's Challenge to Repressed Memories
Misinformation Effects in Questioning
Effortful Encoding
Daniel Schacter
Ebbinghaus Forgetting Curve Retention Rates