APA Dictionary of Psychology

an achievement test battery developed by the California Test Bureau to assess the basic skills of students in kindergarten through 12th grade. Now in its sixth edition and called TerraNova CAT, it consists of various multiple-choice subtests across 13 levels (K–12) and six thinking-process categories (gathering information, organizing information, analyzing information, generating ideas, synthesizing elements, evaluating outcomes). Among the academic areas covered (at appropriate levels) are reading, language, spelling, mathematics, study skills, science, and social studies. It was originally published in 1943 as a revision of the now obsolete 1933 Progressive Achievement Tests, which were also developed by the California Test Bureau.