This paper discusses the incorporation of heuristics in computerized decision aids that are used for structuring decision problems. Decision theory is described in terms of linked subsystems, and sites where it is necessary to employ heuristic rather than normative, algorithmic procedures are identified. Production systems are then used to…

Consistent results of two experiments, in which undergraduate students were taught relatively technical native language vocabulary through keyword methods, showed that effectiveness of such methods depended upon whether meanings of words to be learned were abstract or concrete and whether comprehension was assessed immediately or after a delay.…