Baddeley 1966 - AO1

• What did Baddeley do?

  > Developed working memory model

  > Discovered memory is more complicated than MSM
• What did his experiment 1 invovle?

  > Tested LTM

  > Word lists on tape recording (standardized)

  > Found that participants also used their STM (confounding variables)

  > Improved and conducted a second experiment
• What did his experiment 2 involve?

  > Introduced an interference task to cancel out effect from STM

  > Participants only used LTM
• What did his experiment 3?

  > Presented word lists as a slide show

  > Removed any problems with participants who couldn't hear well
• What was Baddeleys aim?

  Does the memory work acoustically or semantically?
• What was the procedure?

  > Volunteer sampling

  > 72 Participants

  > Cambridge university

  > 15-20 participants per condition

  > Lab experiment

  > 4 groups : Acoustically similar , acoustic control, semantically similar, semantic control

  > 10 words

  > 15 minutes forgetting period

  > 3 second slideshow
• What were the results?


  Dissimilar words were easier to recall
• What was his conclusion?

  LTM is not confused by sound therefore is encodes semantically, while STM encodes acoustically.