(noun)
the action of associating a feature or quality with some person or agent, the action of regarding that feature or quality as characteristic of the person or agent, or a quality that is thus regarded;
e.g. Her greatest attribution is a strong sense of justice and fairness;
(noun)
the action of recognizing a particular person (e.g. an author or an artist) as the creator of a piece of work (such as literature or art) or the maker of some remark;
e.g. They argued about the attribution of the work because they were uncertain of who had done it.
(noun)
in psychology, the action or process by which people make associations between behavior and its causes and thus form judgments about their own behavior and others' behavior;
e.g. He is studying patterns of attribution in children.