TY - BOOK AU - Anastasi, Anne, AU - ED - ED - ED - ED - SN - 2 PY - 1958///46 CY - New York PB - Macmillan KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Difference (Psychology);Psychophysiology N1 - Includes bibliography; 5 ER -