Chatterjee, Sangit; Jamieson, Linda; Wiseman, Frederick - In: Marketing Science 10 (1991) 2, pp. 145-160
observations can be influential in the sense that their presence or absence significantly influences the obtained values of the … be investigated in order to determine which observations, if any, need to be analyzed separately or excluded entirely …. The purpose of this paper is (1) to propose a new technique for identifying influential observations and observations …