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	1.	A study of pupil achievement and special class needs in Westbury, L.I., by Warren W. Coxe and Ethel L. Cornell. by Coxe, Warren W. (Warren Winfred), 1886-1956 Cornell, Ethel Letitia, 1892- [joint author.] Series: University of the State of New York bulletin ; no. 839. November 1, 1925 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Albany, The University of the State of New York Press, 1926 Availability: No items available. Add to cart (remove)
	2.	The effect of trait differences in ability grouping, by Ethel L. Cornell ... by Cornell, Ethel Letitia, 1892- Series: University of the state of New York bulletin ; no. 981. Oct. 1, 1931 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Albany, The University of the State of New York Press, 1931 Availability: No items available. Add to cart (remove)
	3.	The variability of children of different ages and its relation to school classification and grouping, by Ethel L. Cornell ... by Cornell, Ethel Letitia, 1892- Series: University of the state of New York bulletin ; no. 1101 \| Educational research studies ; 1937, no. 1 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Albany, The University of the state of New York, 1937 Availability: No items available. Add to cart (remove)

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