GCSE 2.3 MEM Peterson & Peterson

What was the aim of Lloyd and Margaret Peterson's study?

• To investigate the duration of short-term memory

• To test the effectiveness of rehearsal in short-term memory

• To compare short-term memory with long-term memory

• To examine the impact of distractions on memory

How many participants were involved in the study?

• 12

• 18

• 24

• 30

What technique did the researchers use to prevent rehearsal?

• Counting backwards in threes or fours

• Showing a red light

• Presenting trigrams one at a time

• Using psychology students as participants

What was the independent variable in the study?

• The number of trigrams recalled correctly

• The time interval between hearing the trigram and recalling it

• The duration of short-term memory

• The number of trials conducted

What percentage of trigrams were recalled correctly after 3 seconds?

• 10%

• 30%

• 50%

• 80%

What percentage of trigrams were recalled correctly after 6 seconds?

• 10%

• 30%

• 50%

• 80%

What percentage of trigrams were recalled correctly after 18 seconds?

• 10%

• 30%

• 50%

• 80%

Which are limitations of the study?

• The lack of mundane realism and external validity

• The use of artificial stimuli

• The consideration of only one type of stimuli

• The lack of control in the experiment

What is one practical application of the study?

• Avoiding distractions when trying to memorize information

• Using the Brown Peterson technique in everyday life

• Rehearsing information to improve short-term memory

• Eliminating noise to enhance memory performance

What is the term used to describe the technique of preventing rehearsal?

• The Brown Peterson technique

• The trace decay technique

• The interference technique

• The multi-store technique