One strength of the multi-store model (MSM) is that it is supported by evidence from case studies of patients with amnesia. For example, the case of HM showed that he could not form new long-term memories after his hippocampus was removed, but his short-term memory remained intact. This supports the MSM's idea that STM and LTM are separate, distinct stores.
However, a weakness of the MSM is that it is too simplistic. It suggests that STM and LTM are unitary stores, but research suggests they are more complex. For example, the Working Memory Model shows that STM is not just a passive store but an active processor with multiple components (e.g., phonological loop, visuo-spatial sketchpad). Similarly, research into LTM has identified different types, such as procedural, semantic, and episodic memory, which the MSM does not account for.
Another weakness is that the model overemphasises the role of rehearsal in transferring information to LTM. We often remember things without consciously rehearsing them (e.g., a flashbulb memory), and some things we rehearse a lot are not transferred to LTM. This suggests that the transfer process is more complex than the model suggests, possibly involving the depth of processing rather than just simple repetition.
The Multi-Store Model (MSM), proposed by Atkinson and Shiffrin (1968), describes memory in terms of three stores: the sensory register, short-term memory (STM), and long-term memory (LTM). Evaluation involves weighing up its strengths and weaknesses. Its main strength is the evidence supporting the distinction between STM and LTM. However, it's criticised for being overly simplistic. For instance, the Working Memory Model provides a more detailed account of STM as an active processor. The MSM also doesn't differentiate between types of LTM (procedural, semantic, episodic). Finally, its emphasis on rote rehearsal as the only way to transfer information to LTM is a limitation, as meaning and emotional significance also play crucial roles.
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