Principles of the Analytic Hierarchy Process
Joseph M. Katz Graduate School of Business
University of Pittsburgh
: Jan, 1987
: Expert judgment and expert systems- Pages: 27-73
: Cognitive psychologists have classified thinking into two types. This division has gone by many names. Aristotle referred to it as active versus passive reason ; Freud  as secondary versus primary process thinking; and Hobbes  as thought with or without “designe.” More recently the division has been referred to as directed versus autistic thinking  and operant versus respondent thought . The terms Varendinck  uses for the division may be most familiar to the layman. He noted the classification as one between conscious and foreconscious or affective thought. Adopting this familiar terminology, conscious thought appears to differ from affective thought in that it is directed, checked against feedback, evaluated in terms of its effectiveness in advancing specific goals, and protected from drift by deliberately controlled attention by the thinker .
: Pairwise comparison, Rank preservation, Ratio scale, Priority vector, Conscious thought