TerraNova is a series of standardized achievement tests used in the United States designed to assess K-12 student achievement in reading, language arts, mathematics, science, social studies, vocabulary, spelling, and other areas. The test series is published by McGraw-Hill.
TerraNova isn't used by all Department of Defense Dependents Schools. The state of California uses the test as part of the CAT/6 or California Achievement Tests, 6th edition statewide testing program, STAR. The CAT series of tests have been available for quite some time and before many US states began developing their own standards-based tests as part of an overall testing movement in the United States which began in the early 2000s, the CAT were also widely used outside of California to assess student achievement.