classical study

• Baddeley 1966b Aim: To investigate the influence of acoustic and semantic similarity on LTM for word lists
• Baddeley 1966b Procedure: included 4 conditions Acoustically similar, Acoustically dissimilar, Semantically similar, Semantically dissimilar.
• Baddeley 1966b Procedure: The participants were given 10-words list presented visually each word for 3 seconds, then 8 digits presented and recalled (3 times). The participants were then given 1 minute to recall the 10 words in the correct order.
• Baddeley 1966b Sample: independent design with 72 participants from female and male university students.
• Baddeley 1966b Results: Acoustically similar words not affected by 15-minute interference task. Semantically similar words are confusing and retrieval of info from LTM is more difficult. Participants perform worse because LTM gets confused retrieving words which are semantically similar.
• Baddeley 1966b concluded that the LTM encodes semantic information.
• (weakness) Low generalisability- All students, similar age, similar mindsets, similar backgrounds.
• (strength) High internal validity - controlled experiment
• (strength) High ecological validity - real life application, school and studying.