. A person cannot learn much by observation if be does not attend to, or recognize, the essential features of the model"s be ha vior. One of the component functions in learnin g by example is therefore concerned with attentional processes. Simply exposing persons to models does not in itself ensure that they will attend closely to them, that they vill necessarily select from the model's numerous characteristics the most relevant ones, or that they will even perceive accurately the aspects they happen to notice.