In recent decades, steel shear walls have drawn considerable attention as a robust system against lateral loads in different types of buildings, particularly in high-rise buildings. Results of conducted experiments on steel shear walls under cyclic loading indicate large stiffness, sufficient strength, appropriate ductility, and high energy dissipation caused by earthquakes in this seismic lateral load resisting system. If the structure is low-rise once using steel shear walls, shear displacements are dominant determining the lateral stiffness of the structure. However, for high/medium-rise structures or walls with aspect ratios larger than 1, big axial deformations of columns and intensification of their effects at higher locations cause bending displacements to be dominant. In this paper, in order to investigate bending and shear behavior of this system, 1 to 3-story steel shear walls are examined using a modified slopedeflection method where the obtained results are then compared with the results obtained by the plate-frame interaction model and numerical and experimental models as well. Due to the absence of a diagonal tension field in finite element models and assumption of full yield for the plate, a discrepancy is observed in the results for the plate-frame interaction model. Therefore, a correction factor should be considered for the modified slope-deflection method.