Duration of Memory Studies: Bahrick et al Flashcards Preview

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Flashcards in Duration of Memory Studies: Bahrick et al Deck (16):
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Bahrick et al date

1975

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Bahrick et al study name

Investigating LTM in a Natural Setting

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Method: Part 1

392 people were asked to list the names of their ex-classmates

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Method: how many participants took part?

392

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Method: Part 1 test name

free-recall test

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Method: Part 2

participants were then shown photos and asked to recall the names of the people shown

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Method: Part 2 test name

photo-recognition test

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Results: 15 years

within 15 years of leaving school, participants could recognise 90% of names and faces

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Results: free recall

they were about 60% accurate on free recall

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Results: 30 years

free recall had declined to about 30% accuracy

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Results: 48 years

name-recognition was about 80% accurate and photo recognition about 40% accurate

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Conclusion: evidence

the study is evidence of very-long term memories in a real life setting

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Conclusion: access

recognition is better than recall, so there may be a huge store of information, but it's not always easy to access all of it - you need help to get to it.

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Evaluation: ecological validity

this was a field experiment and so had high ecological validity

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Evaluation: type of experiment

field experiment

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Evaluation: control

in a real-life study, its hard to control the variables, making the findings less reliable