TY - GEN AU - Ilechukwu,S T TI - Sibling rivalry as an important factor in academic under-achievement: a cross-cultural contribution SN - 0702-8466 PY - 1988///1206 KW - Adolescent KW - Adult KW - Birth Order KW - Competitive Behavior KW - Cultural Characteristics KW - Culture KW - Female KW - Humans KW - Jealousy KW - Male KW - Nigeria KW - Sibling Relations KW - Underachievement N1 - Publication Type: Journal Article ER -