Baddley 1966 experiment

Seite 1

Baddeley 1966

Aims: To test whether acoustic encoding is used in short term memory, whereas semantic encoding is used in LTM. To confirm Conrad's findings that STM encodes acoustically.

Procedure:

Acoustically similar words presented (hear, fear, shear)

Semantically similar words presented (big/ large/ huge)

Acoustically dissimilar words presented (Hot, far, jam)

Semantically dissimilar words presented (pen, jump, giggle)

Participant's asked to serial recall either straight away (STM) or after a delay (LTM)

Results:

STM Recall- acoustically similar lists difficulty (substitution errors)

LTM Recall- semantically similar lists difficulty (Substitution errors)

Conclusion: Encoding methods are different for LTM and STM. STM is acoustic, STM is semantic.

Evaluation: Lacks ecological validity, other types of LTM and methods of encoding which aren't considered. No control over participant variable.

New Page