Psychology Peterson and Peterson Study
- Created by: ashleighchester97
- Created on: 17-03-15 10:47
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- Peterson and Peterson DURATION
- Aim
- To study how long info remains in the STM if not rehearsed.
- Procedure
- 24 Participants, presented with nonsense trigrams consisting of 3 consonants
- Recall was required after a delay of 3,6,9,12,15 or 18 secs.
- Were asked to count backwards in threes randomly as a distractor task between presentation and recall.
- Recall had to be 100% accurate and in correct order.
- Tested repeatedly with the various time delays
- Independent Variable
- How long the time delay was.
- Dependent Variable
- If they were correct in their recall.
- Findings
- Rapid increase in forgetting as time delay increased
- After 3 seconds 80% correct recall
- After 6 seconds 50% correct recall
- After 18 seconds less than 10% correct recall
- Conclusion
- Information is lost very quickly with little or no rehearsal. (No more than 18secs)
- Aim
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