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Psychology
memory
peterson and peterson short term retention
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Cards (14)
What was the aim of the study on short-term memory?
To test the true
duration
of short-term memory
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How many students were tested in the short-term memory study?
24 students
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What task were participants asked to perform after recalling a trigram?
Count backwards from a
3-digit
number
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How might the lack of control in Bartlett's procedures affect the study's findings?
It could lead to
variability
in results and affect
reliability
.
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What were the time delays used for recalling the trigram?
3
,
6
,
9
,
12
,
15
, and
18
seconds
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How many times was the experiment repeated with different trigrams?
48
times
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What was the effect of longer counting times on trigram recall accuracy?
The accuracy
decreased
as counting time
increased
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What percentage of trigrams were recalled correctly after 3 seconds?
Over
80
%
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What percentage of trigrams could be recalled after 18 seconds?
Less than
10%
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What was the purpose of the second experiment?
To give
participants
time to repeat the
trigram
before counting back
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What was the outcome of the second experiment regarding recall frequency?
Extra time increased recall frequency but showed a similar
decline
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What are the main conclusions of the study on short-term memory?
Information in short-term memory fades rapidly
Only
10%
could be recalled after
18 seconds
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What are the strengths of the short-term memory study?
Standardised procedures
Scientific reliability
(can be replicated)
Practical application
to daily life
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What are the weaknesses of the short-term memory study?
Lacks
mundane realism
(
nonsense trigrams
)
Limited
generalisability
(focus on students)
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