Task types examined in GSS research literature are mainly about creative,intelligent and preference task.However,research on GSS has less concentrated on the influence of leader and interest conflict on group decision-making process and outcome.This paper examines the effects of GSS and task type on group outcome.A 2*2 factorial design is employed.Two type of decision-making method are studied: GSS(dispersed) and face-to-face.Two task types are investigated: cognitive conflict task(without interest conflict...