Conclusive Research:Conclusive research provides information which helps the executive to make a ration decision. The marketing executive has to arrive at a suitable decision from the various alternative decisions. The various alternative conclusions and selecting the most suitable conclusion may be done by description research design or experimental research design. In descriptive research design only a partial situation is clarified but in the case of experimental research design a precise alternative is selected. Therefore the experimentation is considered an important conclusive research design.