A new quantitative method in analysing the experiments on short term serial memory

A new quantitative method is introduced into the analysis of the experiments on short term serial memory (STSM). In this method, three parameters are defined to quantitatively represent the performance of memory for item and time order information. These parameters are the divergence, the disorder and the similarity. This method is used in analysing the experiments on visuo-spatial STSM. The results show that the parameters may reflect some characteristics of STSM.