2.6 Retrieval Failure - Explanations for Forgetting
Retrieval failure is where information is available
in long term memory but cannot be recalled
without cues.
Tulving (1983)
Reviewed research and discovered a consistent pattern calling
this the encoding specificity principle. This states that a cue has
to be both present at encoding and present at retrieval.
Context-dependant forgetting
Recall depends on external cue -
weather or place
Godden and Baddeley (1975)
Procedure: Studied deep sea divers and made
them learn a list of words either underwater or
on land then recall them in either of those
contexts.
Findings: In two of the conditions where the
environmental contexts of learning and recall
did not match recall was 40% lower. Concluding
that external cues at learning were different to
those at retrieval so there was retrieval failure.
State-dependant forgetting
Recall depends on internal cue -
feeling upset or being drunk
Carter and Cassaday (1998)
Procedure: Gave antihistamine drugs to
participants which had a mild sedative
effect. The participants then had to learn
lists of words and passages in 4 conditions,
drunk learn not drunk recall and vise versa
or same condition in both.
Findings: In conditions where there was a mismatch
between internal state at learning and recall,
performance on memory test was significantly worse.
Evaluation
Strengths:
Real world application. Retrieval cues may help to overcome
forgetfulness in everyday situations. Showing how research can
remind us of strategies used in real life.
Research support. Impressive
range of research that supports
retrieval failure explanation.
Weaknesses:
Recall vs recognition. Context effects may
depend substantially on the type if memory
being tested. Retrieval failure is only an
explanation for forgetting because it applies
when a person has to recall information rather
than recognise it.