ABSTRACT
T he central aim of contemporary research in cognitive psychology is theisolation of plausible cognitive mechanisms that are engaged in judgmentand decision making. Given that a solely behavioral approach is unable to deal with some empirical phenomena, researchers have gradually begun exploring the cognitive principles underlying decision making. When two cognitive models predict the same outcome at the behavioral level, assuming completely different mechanisms, it becomes obvious that research focus should shift from testing the outcome to testing actually assumed processes (Anderson, 1990).
