Term: Decision Tree Analysis (DTA)

Glossary Definition

Last Updated: 2011-02-22


A statistical approach used to understand how several variables interact to place people or objects into pre-defined groups. Output from DTA is typically presented as a decision tree. At each branch of this tree an outcome is provided (i.e., based on a combination of variables, the tree predicts to which group people or objects belong to). The accuracy of each decision and the overall tree is also provided, by comparing how often DTA correctly places people into their actual groups.