 The concept of indoctrination was also of great interest to analytic philosophers of education, for, it was argued, getting clear about precisely what constitutes indoctrination also would serve to clarify the border that demarcates it from acceptable educational processes. Thus, whether or not an instructional episode was a case of indoctrination was determined by the content taught, the intention of the instructor, the methods of instruction used, the outcomes of the instruction, or by some combination of these. Adherents of the different analyses used the same general type of argument to make their case, namely, appeal to normal and aberrant usage. Unfortunately, ordinary language analysis did not lead to unanimity of opinion about where this border was located, and rival analyses of the concept were put forward (Snook 1972). The danger of restricting analysis to ordinary language (“normal English usage”) was recognized early on by Scheffler, whose preferred view of analysis emphasized