what did Baddeley and Hitch base their model on?
results from studies that used interference tasks
interference task
if participants are asked to perform two tasks simultaneously that use the same system, their performance will be affected
example of the interference task
saying ‘the the the’ while silently reading something is very difficult
according to the working memory model…
both these tasks use the phonological loop
the phonological loop has…
limited capacity so it can’t cope with both tasks
performance on one, or both tasks…
will be affected
however, if the two taks involve different systems…
performance isn’t affected