Trends in academic progress : achievement of american students in science, 1970-90, mathematics, 1973-90, reading, 1971-90, and writing, 1984-90 : data summary
compiled by Eugene H. Owen
Bok Engelsk 1995
Utgitt | Springfield, VA : ERIC Document Reproduction Service (EDRS) , 1995
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Omfang | 35 s. : tab.
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Emner | undervisning testing prestasjonsmålinger
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