highly significantp < 0.001
Referring to the order of components reported in Table 4 , the absolute values of R were highly significant ( p < 0.001); for four components, R was >0.9 ( p < 0.001), for the 4th component (related to memory) R = 0.86 ( p < 0.001) and for the 6th component (orientation) R = 0.66 ( p = 0.011).