What is the definition of Short-term memory?
A memory storage that is for events that happened within the last week
Memory for immediate events, the events disappear quickly if not rehearsed
Who conducted a study on the duration of STM?
Peterson and Peterson
Bahrick et al
What method did Peterson and Peterson use to test the duration of STM?
A consonant syllable followed by a three digit number e.g STN 349
Observation, followed by a questionnaire e.g. what time did you wake up yesterday?
Immediately after hearing the consonant syllable, what did Peterson and Peterson's participants have to do?
Count backwards from the 3 digit number in 3s or 4s, then recall syllable after an interval
Count from the 3 digit number in 10s and then recall the syllable
The interval in Peterson and Peterson's study (time spent counting backwards) was 3, 6, 9, 12, 15 or 18 seconds
How much did the participants in Peterson and Peterson's study remember?
90% with a 3 second interval and 3% with an 18 second interval
95% with a 3 second interval and 8% with an 18 second interval
Peterson and Peterson concluded that STM lasts 18 seconds at most
Who conducted a study on the duration of LTM?
Loftus and Palmer
Bahrick et al tested duration of LTM by asking participants to put names to faces of their year book, 48 years on, how accurate were they?
What is the definition for long- term memory?
Memory for events that have happened in the past, lasts anywhere from 2 minutes to 100 years
Memory for events that have occurred since birth, the memories can last a lifetime
The definition of duration is how long a memory lasts before it is no longer available
Which of the following is an evaluation point for Peterson and Peterson's study on the duration of STM?
It has high validity because it studies all types of memory and applies to real life
It lacks validity because it only studies memory for words, whereas our memories are often concerned with other things
STM has a very limited duration