Since 1969, NAEP has conducted ongoing nationwide assessments of student achievement in various subjects. This report presents the results of NAEP's long-term trend assessments in reading, mathematics, and science that were administered in 1999 to students aged 9, 13, and 17. Because these same assessments have been administered at different times during NAEP's 30-year history, it is possible to chart educational progress back to 1969 in science, 1971 in reading, and 1973 in mathematics. In this report, chapter 1 presents overall scale score and performance level trends for the nation, chapter 2 examines average scale scores for various subgroups, and in chapter 3 the focus shifts to results from the long-term trend background questionnaires.
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