Memory - Explanations for Forgetting Flashcards
What does the MSM state about the capacity of LTM and duration of memories?
LTM has unlimited capacity and memories have duration potentially for a lifetime
Interference
One memory interfering with another
What may interference result in?
Completely forgetting something or one thing being distorted
Proactive interference
New information is being interfered with by previously learnt information
Example of proactive information
You get a new phone number, but you have difficulties reciting it because your old number keeps on interfering with it
Retroactive interference
Old information is being interfered with by new information. New information ‘overwrites’ previously learnt information
Example of retroactive interference
You get a new phone number but when you are asked to recite your old number, you have difficulties because the new number keeps on interfering with it
Who conducted research into interference in 1995?
Howe
Participants of Howe’s study
4-6 year old children
What were children given to learn in the control condition of Howe’s research?
8 pictures
What did children have to learn in the experiment condition of Howe’s research?
They had to learn two picture lists, one after the other
What were children in the control group asked to recall after 24 hours in Howe’s research?
Items from the picture lists they had learnt
What were the individual experimental groups asked to recall after 24 hours in Howe’s research?
Half of the experimental group asked to recall items from first picture list only
Half of the experimental group asked to recall items from both picture lists
What experimental design did Howe use?
Individual groups
Why did Howe chose picture lists instead of word lists?
Because the age of participants meant that some children may not of been able to read
Results of Howe’s study
Participants who learned both lists experienced interference during storage of lists which resulted in unlearning of first picture list they saw
What type of interference was demonstrated in Howe’s research?
Retroactive interference
What is a natural experiment an example of?
A research method
What are independent groups an example of?
An experimental design
What must be included in a ‘write a hypothesis’ exam question?
Independent variable (s)
Dependent variable (s)
Who carried out research into interference in 1997?
Baddeley and Hitch
What was the aim of Baddeley and Hitch’s research into interference?
To investigate interference theory/effects in an everyday setting
What setting was used in Baddeley and Hitch’s research into interference?
An everyday setting of rugby players
What were the rugby players told to recall in Baddeley and Hitch’s research into interference?
Recall the names of the teams they had played over a rugby season
How many games did the rugby players play over the season in Baddeley and Hitch’s research into interference?
Some players played in all games in the season and others missed out on some due to injury
Time interval for all players in Baddeley and Hitch’s research into interference?
Time interval from start to end of season same for all players
What would the results be like in Baddeley and Hitch’s research into interference if the decay theory was correct?
All players would recall similar percentage of games played as time is the only factor to cause forgetting
What would the results be like in Baddeley and Hitch’s research into interference if the interference theory was correct?
Players who played most games would forget more due to interference
Why was Baddeley and Hitch’s research into interference a natural experiment?
Because the IV couldn’t be controlled