The report presents a summary assessment of knowledge about traditional Western forms of art among 9-year-old, 13-year-old, and 17-year-old students. Part of national information gathering project related to educational achievement in various learning areas, the report is presented in three chapters. Chapter I examines instruments used to measure recognition of the elements of art, knowledge of art history, and knowledge of criteria for making aesthetic judgments. Comparative results for students in the three age groups are presented. Chapter II offers a comprehensive picture of overall average national performance and reveals results for different subgroups within the national population. Chapter III summarizes assessment results and discusses implications of the results for art educators, parents, and interested members of the community. Findings indicated that students encountered more difficulty with factual questions than with judgmental questions; possessed high interest in and involvement with Western art, even when their knowledge level was not particularly high; and knew more about art when they participated in many types of art activities. Areas identified as worthy of further consideration by art educators centered on curriculum emphasis, student attitudes, and student performance. Appendices include background questions posed to principals of all schools participating in the survey, tables of data, and definitions of National Assessment reporting groups. (Author/DB) Primary type of information provided by report: Results (Selective).