siblings



One's sibling is one's brother or sister, respectively meaning a male or female with whom one shares at least one parent. This is usually taken to mean that the two people are genetically very close, though it is not always necessarily the case, for example one or more siblings may have been adopted by their parents.

In most societies throughout the world, siblings will usually grow up together and spend a good deal of their time during childhood together. They may have conflicts during their childhood years, but usually resolve them later in life. This closeness may be marked with the development of strong emotional associations such as love and . The sibling bond is often complicated and is influenced by factors such as parental treatment, birth order, personality, and people and experiences outside the family. [1]

Types of siblings

Full sibling

A full sibling (full brother or full sister), is a sibling that shares both biological or adoptive parents. In law, the terms brother German and sister German are used.

Half sibling

A half sibling (half brother or half sister) is a sibling with one shared biological or adoptive parent. A half sibling that shares the same mother (but different fathers) is known as a uterine sibling, whereas one that shares the same father is known as an agnate sibling. In law, the term consanguine is used in place of agnate. Half siblings can have a wide variety of interpersonal relationships, from a bond as close as any full siblings, to total strangers. For half siblings in twins, see semi-identical twin.

At law (and especially Inheritance law) half siblings were often accorded unequal treatment. Old English Common Law at one time incorporated inequalities into the laws of intestate succession, with half siblings taking only half as much property of their intestate siblings' estates as other siblings of full-blood. Unequal treatment of this type has been almost wholly abolished in England and throughout much of the United States.

Stepsibling

A stepsibling (stepbrother or stepsister) is a sibling with whom an individual bears no blood or equivalent adoptive relation, and is related by the marriage or relationship of one parent of the individual to one parent of the sibling.

See also: stepfamily
, step-sib q&a, , step-sib articles

Siblings through breast feeding

Milk brothers or milk sisters are children breastfed by a woman other than their biological mother, a practice known as wetnursing and once widespread.

In Islam those who are fed in this way become siblings to the biological children of their wetnurse, provided that they are less than two years old and have been breastfed five times or more by her. According to shariah (Islamic law) these siblings are mahram, meaning that they are not allowed to marry each other.

Birth order

Main article: Birth order


Birth order is a person's rank by age among his or her siblings. Typically, researchers classify siblings as “eldest”, “middle child”, and “youngest” or simply distinguish between “firstborn” and “later born” children.

Birth order is commonly believed in pop psychology and popular culture to have a profound and lasting effect on psychological development and personality. For example, firstborns are seen as conservative and high achieving, middle children as natural mediators, and youngest children as charming and outgoing. In his book Born to Rebel, Frank Sulloway argues that firstborns to be more conscientious, more socially dominant, less agreeable, and less open to new ideas compared to laterborns. Literature reviews that have examined many studies and attempted to control for confounding variables tend to find minimal effects for birth order on personality. [2][3] In her review of the scientific literature, Judith Rich Harris suggests that birth order effects may exist within the context of the family of origin, but that they are not enduring aspects of personality. [4]

Some research has found that firstborn children have slightly higher IQs on average than later born children. [5] However, other research finds no such effect. [6]

In practice, systematic birth order research is a challenge because it is difficult to control for all of the variables that are statistically related to birth order. For example, large families are generally lower in socioeconomic status than small families, so third born children are more likely than firstborn children to come from poorer families. Spacing of children, parenting style, and gender are additional variables to consider.

Regressive behavior at the birth of a new sibling

The arrival of a new baby is especially stressful for firstborns and for siblings between 3 and 5 years old. Regressive behavior and aggressive behavior, such as handling the baby roughly, can also occur. All of these symptoms are considered to be typical and developmentally appropriate for children between the ages of 3-5. While some can be prevented, the remainder can be improved within a few months. Regressive behavior may include demand for a bottle, thumb sucking, requests to wear diapers (even if toilet-trained), or requests to carry a security blanket.

Regressive behaviors are the child’s way of demanding the parents’ love and attention. Parents can deal with these behaviors by explaining to the older child their new sibling role, making this role sound exciting, answering questions about the baby and the process of birth (as appropriate), or reserving time each day just for the parent and older child.

The AAP (American Academy of Pediatrics [1]) suggests that instead of protesting or telling children to act their age, parents should simply grant their requests without becoming upset. The affected children will soon return to their normal routine when they realize that they now have just as important a place in the family as the new sibling. Most of the behaviors can be improved within a few months.

The University of Michigan Health System [2] advises that most occurrences of regressive behavior are mild and to be expected; however, it recommends parents to contact a pediatrician or child psychologist if the older child tries to hurt the baby, if regressive behavior does not improve within 2 or 3 months, or if the parents have other questions or concerns.

Sibling rivalry

Main article: Sibling rivalry
Enlarge picture
Portrait of Lady Cockburn and her Three Eldest Sons , by Joshua Reynolds.


Sibling rivalry is a type of competition or animosity among brothers and sisters. It appears to be particularly intense when children are very close in age and of the same gender.[7] Sibling rivalry can involve aggression; however, it is not the same as sibling abuse where one child victimizes another.

Sibling rivalry usually starts right after, or before, the arrival of the second child. While siblings will still love each other, it is not uncommon for them to bicker and be malicious to each other. [8] Children are sensitive from the age of one year to differences in parental treatment and by three years they have a sophisticated grasp of family rules and can evaluate themselves in relation to their siblings. [1] Sibling rivalry often continues throughout childhood and can be very frustrating and stressful to parents. [9] One study found that the age group 10 to 15 reported the highest level of competition between siblings [10] Sibling rivalry can continue into adulthood and sibling relationships can change dramatically over the years. Approximately one-third of adults describe their relationship with siblings as rivalrous or distant. However, rivalry often lessens over time and at least 80 percent of siblings over age 60 enjoy close ties. [1]

According to researchers, each child in a family competes to define who they are as individuals and want to show that they are separate from their siblings. Sibling rivalry increases when children feel they are getting unequal amounts of their parents’ attention, where there is stress in the parents’ and children’s lives, and where fighting is accepted by the family as a way to resolve conflicts. [9] Sigmund Freud saw the sibling relationship as an extension of the Oedipus complex, where brothers were in competition for their mother's attention and sisters for their fathers. [11] Evolutionary psychologists explain sibling rivalry in terms of parental investment and kin selection: a parent is inclined to spread resources equally among all children in the family, but a child wants most of the resources for him or herself. [10]

Westermarck effect and its opposite

Anthropologist Edvard Westermarck found that children who are brought up together as siblings are desensitized to form sexual attraction later in life. This is known as the Westermarck Effect. It can be seen in biological and adoptive families, but also in other situations where children are brought up in close contact, such as the Israeli kibbutz system and the Chinese Shim-pua marriage.[12][13]

The opposite phenomenon, when relatives do fall in love, is known as genetic sexual attraction. This can occur between siblings brought up apart from each other, for example, adoptees who are re-united in adulthood.

See also

Notes

1. ^ Mersky Leder, Jane. Adult Sibling Rivalry. Psychology Today, Jan/Feb 1993. Retrieved on November 28, 2006.
2. ^ Ernst, C. & Angst, J. (1983). Birth order: Its influence on personality. Springer.
3. ^ Jefferson, T., Herbst, J. H., & McCrae, R. R. (1998). Associations between birth order and personality traits: Evidence from self-reports and observer ratings. Journal of Research in Personality, 32, 498-509.
4. ^ Harris, J. R. (1998). The nurture assumption: Why children turn out the way they do. New York: Free Press.
5. ^ Carey, Benedict. Family dynamics, not biology, behind higher IQ. International Herald Tribune, June 21, 2007. Retrieved on July 15, 2007.
6. ^ Rodgers, J. L., Cleveland, H. H., van den Oord, E. and Rowe, D. (2000). Resolving the Debate Over Birth Order, Family Size and Intelligence. American Psychologist, Vol. 55.
7. ^ The Effects of Sibling Competition Syliva B. Rimm, Educational Assessment Service, 2002.
8. ^ New Baby Sibling University of Michigan Health System, June 2006
9. ^ Sibling Rivalry University of Michigan Health System, October 2006
10. ^ Sibling Rivalry in Degree and Dimensions Across the Lifespan Annie McNerney and Joy Usner, 30 April 2001.
11. ^ Freud Lecture: Juliet Mitchell, 2003
12. ^ Westermarck, E. A. (1921). The history of human marriage, 5th edn. London: Macmillan, 1921.
13. ^ Arthur P. Wolf. Childhood Association and Sexual Attraction: A Further Test of the Westermarck Hypothesis. American Anthropologist, New Series, Vol. 72, No. 3 (Jun., 1970), pp. 503-515. Retrieved on November 29, 2006.


A brother is a male sibling.

Brother may refer to:
  • Brother (band), a Celtic-roots rock group from Australia
  • Brother (2000 film), a Japanese Yakuza film
  • Brother (1997 film), a Russian action film

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Sister may also refer to:
  • "Sister" is a song by the band She Wants Revenge
  • "Sister" is a song by The Ex, which appears on Turn
  • Sister (Letters To Cleo album), an album of the band Letters To Cleo
  • Sister

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parent is a father or mother; one who sires or gives birth to and/or nurtures and raises an offspring. The different role of parents varies throughout the tree of life, and is especially complex in human culture.
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Genetic distance is a measure of the dissimilarity of genetic material between different species or individuals of the same species.

All of life today is based upon the molecule of inheritance, DNA (deoxyribonucleic acid).
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Adoption is the legal act of permanently placing a child with a parent or parents other than the birth mother or father. An adoption order has the effect of severing the parental responsibilities and rights of the birth parents and transferring those responsibilities and rights
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Love is an intense feeling of affection related to a sense of strong loyalty or profound oneness.[] The meaning of love varies relative to context.
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parent is a father or mother; one who sires or gives birth to and/or nurtures and raises an offspring. The different role of parents varies throughout the tree of life, and is especially complex in human culture.
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The phrase birth order is defined as a person's rank by age among his or her siblings. Birth order is commonly believed to have a profound and lasting effect on psychological development.
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Personality may refer to:

Psychology

  • Personality psychology, a branch of psychology which studies personality and individual differences
  • Personality development, the study of human personality development over time

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worldwide view of the subject.
Please [ improve this article] or discuss the issue on the talk page.


Family is a Western term used to have denote a domestic group of people, or a number of domestic groups linked through descent (demonstrated or stipulated)
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parent is a father or mother; one who sires or gives birth to and/or nurtures and raises an offspring. The different role of parents varies throughout the tree of life, and is especially complex in human culture.
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father is defined as the male parent of an offspring.

According to anthropologist Maurice Godelier, a critical novelty in human society, compared to humans closest biological relatives (chimpanzees and bonobos), is the parental role assumed by the males, which were unaware
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Inheritance is the practice of passing on property, titles, debts, and obligations upon the death of an individual. It has long played an extremely important role in human societies.

Both anthropology and sociology have made detailed studies in this area.
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In common law legal systems, the law is created and/or refined by judges: a decision in the case currently pending depends on decisions in previous cases and affects the law to be applied in future cases.
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The Law of Wills, Trusts and Inheritance
Part of the common law series
Wills
Wills  · Holographic will
Joint wills and mutual wills  · Will contract
Codicils
Parts of a Will
Attestation clause  · Residuary clause
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Motto
Dieu et mon droit   (French)
"God and my right"
Anthem
No official anthem specific to England — the anthem of the United Kingdom is "God Save the Queen".
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Motto
"In God We Trust"   (since 1956)
"E Pluribus Unum"   ("From Many, One"; Latin, traditional)
Anthem
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stepfamily is the family one acquires when a parent enters a new marriage, whether the parent was widowed or divorced. For example, if one's mother dies and one's father marries another woman, the new woman is one's stepmother. A less common term is blended family.
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Breastfeeding is the feeding of an infant or young child with milk from a woman's breasts. Babies have a sucking reflex that enables them to suck and milk.

With few exceptions, human breast milk is the best source of nourishment for human infants.
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A wet nurse is a woman who breast feeds a baby that is not her own.

Reasons for use

A wet nurse may be employed if the mother of a baby is unable to breast-feed her infant for reasons such as:
  • drug use (prescription or illegal)
  • illness
  • death

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If you are prevented from editing this page, and you wish to make a change, please discuss changes on the talk page, request unprotection, log in, or .
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Sharia (Arabic: شريعة transliteration: Šarī‘ah
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mahram (Arabic محرم, also transliterated mahrim or maharem) is an unmarriageable kin with whom sexual intercourse would be considered incestuous, a punishable taboo.
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The phrase birth order is defined as a person's rank by age among his or her siblings. Birth order is commonly believed to have a profound and lasting effect on psychological development.
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The term popular psychology (frequently called pop psychology or pop psych), refers to concepts and theories about human mental life and behaviour that are purportedly based on psychology and that attain popularity amongst the general population.
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Personality may refer to:

Psychology

  • Personality psychology, a branch of psychology which studies personality and individual differences
  • Personality development, the study of human personality development over time

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Frank J. Sulloway is a visiting Scholar in the Institute of Personality and Social Research at the University of California, Berkeley, and a Visiting Professor in the Department of Psychology.

He lives in Cambridge, Massachusetts.
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A Literature review is a body of text that aims to review the critical points of current knowledge on a particular topic.

Most often associated with science-oriented literature, such as a thesis, the literature review usually precedes a research proposal, methodology and
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Judith Rich Harris (born February 10, 1938) is a psychologist and the author of The Nurture Assumption, a book criticizing the belief that parents are the most important factor in child development.
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intelligence quotient or IQ is a score derived from one of several different standardized tests attempting to measure intelligence. IQ tests are used as predictors of educational achievement. People with low IQ scores are sometimes placed in special-needs education.
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