Purpose: The aim of this article is to examine the empirical literature on irrationality and identify a set of concepts to help administrators cope with irrationality in decision making. Design/methodology/approach: This analysis is a synthesis of the selected research literature on irrationality. Findings: A set of seven concepts and propositions was identified that are critical in understanding the influence on irrationality on decision making. Research limitations/implications: The propositions proposed are ways to deal constructively with irrational behavior in decision making, but it is only a beginning. Practical implications: The concepts, propositions, and their application to practice are not well-known in educational administration and are useful tools for educational leaders. Originality/value: The paper discusses the power of seven concepts: perception; simplification; decisiveness; deadlines; norms; ownership; and emotional expectation.