Working memory model evaluation

Strength: supported by research evidence - Shallice and Warrington
Shallice and Warrington (1970) studied KF, who had suffered brain damage and had difficulty with sounds of numbers, letters and words but could recall visual letters and digits. His phonological loop had been damaged, but he was able to recall visual letters/digits because his visuo-spatial sketchpad was still intact, suggesting that the two are separate stores

Strength: supported by research evidence - Baddeley and Hitch
Baddeley and Hitch's dual-task investigation (1975) showed that participants had more difficulty completing two visual tasks than two different tasks (a visual and acoustic task), showing that there are two separate stores for processing visual and verbal information

Strength - supported by research evidence - Simons and Chabris
Simons and Chabris (1999) found that…