Forgetting

Forgetting

Deterioration in performance of learned behavior following a retention interval.

Encoding Failure

Information not entered into long term memory, not encoded.

Retrieval Failure

Forgotten information

Retention Interval

Period during which learning does not occur.

Free recall (Measuring fogetting)

How much can be remembered

Relearning Method (Measuring forgetting)

The more retained, the lesser relearning time.

Delayed Matching (Measuring Forgetting)

Checking after a while.

Extinction Method (Measuring Forgetting)

Quicker extinction means forgetting.

Other (Measuring Forgetting)

Prompted/cue recall, gradient degradation, recognition.

Ebbinghaus

Strong relationship between length of retention interval and forgetting.

John Mcgeoch

Learning occurs with time, but it’s certain behavior, experience not time that change behavior.

Factors in Forgetting

• Degree of learning.

• Prior learning.

• Subsequent learning.

• Change in context.

Prior Learning

More meaningful material is easier to remember. Forgetting occurs faster when learning unrelated terms.

Proactive Interference

Material learnt earlier disrupts retrieval of material learnt later

Subsequent Learning

We forget because we keep learning.

Retroactive Learning

Material learned later disrupts.

Context

Stimuli present during learning that’s not directly relevant to what’s learnt.

Cue Dependent Forgetting

When a stimuli that’s present during learning is absent, performance can suffer.