Discusses the evolution of library skills from information location skills to information processing skills and addresses the assessment of library information skills on three standardized achievement tests for high school students: the Iowa Tests of Educational Development, the Tests of Achievement and Proficiency, and the Comprehensive Tests of…

Through the nineteen-forties, fifties, and up to the mid-sixties, achievement test scores steadily increased. Since then, many test scores drop. The reported test score declines are more dramatic in recent years and most evident for higher grades. They are specially pronounced in verbal tests, but hold for nearly all tested areas. Specially:…