Pererson And Peterson :duration Short Term Memory Flashcards

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1
Q

What was the aim

A

To investigate duration in STM

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2
Q

Who was involved ?

A

24 undergraduate students

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3
Q

What were ppts presented ?

A

A constant Triagram to remember

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4
Q

To prevent rehearsal what was done ?

A

They were given a 3 digit number and told to count back

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5
Q

After 3 seconds what happened ?

A

Only 80 percents of ppts recalled the trigram correctly

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6
Q

After 18 seconds what happened ?

A

10 percent recalled correctly

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7
Q

Conclusion

A

STM lasts 18-30 seconds unless rehearsed

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8
Q

Weakeness Peterson Peterson STM

A

Lack mundae realism

As task to recall trigrams in artificial

As research does not reflect real life memory activities

This lowering external validity

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9
Q

Strength of Peterson Peterson duration of STM

A

High reliability

Done in controlled environment

Can be repeated in same environment

Increased internal validity

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