- consumer price index, CPI, cost-of-living index - an index of the cost of all goods and services to a typical consumer
--1 is a kind of price index, price level
- California Personality Inventory, CPI - a self-report personality inventory originally derived from the MMPI; consists of several hundred yes-no questions and yields scores on a number of scales including dominance and self acceptance and self control and socialization and achievement etc.
--2 is a kind of self-report personality inventory, self-report inventory