Hyperdescent is the opposite of hypodescent (the practice of classifying a child of mixed race ancestry in the more socially subordinate parental race). Both hyperdescent and hypodescent vary from, and may not be mutually exclusive with, other methods of determining lineage, such as patrilineality and matrilineality.
Examples of hyperdescent 
Until well into the 20th century, Australia, under the Aborigines Act, engaged in a program of forcibly separating mulatto children from their Aboriginal families and raising them in what were essentially "whitening" re-education schools or white foster homes to prepare them for jobs under white employers and eventual marriage to whites. The government theory was that it was improper for part-white children to live as Aborigines (then perceived as not only squalid but dying out, although births of mulatto Aborigine children were on the rise.) Whites believed that mulattoes who married whites would have descendants who were nearly or completely indistinguishable from 100%-whites within 1-3 generations. The anti-miscegenation laws of much of the U.S. took the opposite tactic, and forbade mixed marriages to prevent the "whitening" of mulatto populations.)[clarification needed]
Latin America 
Brazil is an example of a country with a history of European slavery of black Africans somewhat analogous to that of the United States of America. However, in the United States, hypodescent was applied, gradually classifying anyone with African American ancestry as black, specifically in one-drop rule laws passed in Virginia and other states in the 20th century. In Brazil, by contrast, people of mixed race who were faird-skinned or were educated and of higher economic classes were accepted into the elite. Thomas E. Skidmore, in Black into White: Race and Nationality in Brazilian Thought explains that many of the Brazilian elite encouraged a national process of "whitening" through miscegenation. Skidmore writes (p. 55): "In fact, miscegenation did not arouse the instinctive opposition of the white elite in Brazil. On the contrary, it was a well-recognized (and tacitly condoned) process by which a few mixed bloods (almost invariably light mulattoes) had risen to the top of the social and political hierarchy."
Hispanic America 
Hyperdescent is the rule in the rest of Latin America as well. The mestizo populations of Latin America usually consider themselves to be of European culture rather than American Indian. This is also apparent in the United States, where the practice of hypodescent is the rule among the non-Hispanic population contrasting with hyperdescent among Hispanics. Nearly half of U.S. Hispanics called themselves "white" in the 2000 Census, along with 80% of the population of Puerto Rico. Non-Hispanics, on the other hand, if they are of mixed race, will usually call themselves white only if they are a small fraction (1/8 or 1/16) American Indian, but otherwise will claim being of mixed race or even of the minority race. In the 2000 Census, of 35,305,818 Hispanics, only 407,073 (or just over 1%) called themselves American Indian, and only 2,224,082 (just over 6%) claimed to be of mixed race, even though these Hispanic groups (such as Mexicans) are majority mestizo in their home countries.
About 41.2% of U.S. Hispanics identify as "Some other race" as of 2006, but government agencies which do not recognize "Some other race" (such as the FBI, the CDC, and the NCHS) include this group, and therefore over 90% of Hispanics, within the white population. In such cases, such as with the NCHS, separate statistics are often kept for "White" (which includes whites and over 90% of Hispanics) and "non-Hispanic white".
Another example of hyperdescent is in Iceland, which was populated by Norsemen who had taken Gaelic women. Icelanders are considered of ethnic Norse culture although many of the founding generations were Gaelic women.
See also 
- Doris Pilkington & Nugi Garimara, Follow the Rabbit-proof Fence, University of Queensland Press, 1996 (republished as Rabbit-proof Fence in 2002 and 2004)
- [Australian] Human Rights and Equal Opportunity Commission's "Bringing Them Home: Report of the National Inquiry into the Separation of Aboriginal and Torres Strait Islander Children from Their Families" (1997)
- Christine B. Hickman, "The Devil and the One Drop Rule: Racial Categories, African Americans, and the U.S. Census," Michigan Law Review, Vol: 95, March, 1997, 1175-1176.
- Ian F. Haney Lopez, White by Law: The Legal Construction of Race (NY: New York University Press: 1996)
- Thomas e. Skidmore, Black into White: Race and Nationality in Brazilian Thought (Durham: Duke University press, 1993