In this paper an interplay between the effects of disorder, interlayer coupling and magnetic field is studied in the disordered layered system. The authors present a crossover effect of dimensionality of the system, which depends on both the magnetic field H and the interlayer coupling t. The corrections of conductivity, Delta sigma _j(H,T), corresponding to the maximal crossed diagrams are calculated. It is shown that the conductivities in different directions are anisotropic.