Procedural Knowledge and Processing Strategies in Social Cognition

People not only know things, they know how to do things. The difference between these two types of knowledge–often termed declarative and procedural–is intuitively compelling. For example, people can often learn a fact after hearing it once. But it is less likely that someone can learn a skill from one-time instruction, without having an opportunity to engage in repeated, often laborious practice (Anderson, 1983).