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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
- Survey data regarding stigmatized or deeply personal feelings or activities are often inaccurate. Participants often avoid answers which they feel society, the survey-takers, or they themselves dislike.
- The research must select measure some characteristic that may or may not be defining of sexual orientation, and that may involve further testing problems. The class of people with same-sex desires may be larger than the class of people who act on those desires, which in turn may be larger than the class of people who self-identify as gay/lesbian/bisexual.
- In studies measuring sexual activity, respondents may have different ideas about what constitutes a "sexual act."
- There are several different biological and psychosocial components to sex and gender, and a given person may not cleanly fit into a particular category.
Incidence versus prevalence Edit
Another significant distinction can be made between what medical statisticians call incidence and prevalence. For example, even if two studies agree on a common criterion for defining a sexual orientation, one study might regard this as applying to any person who has ever met this criterion, whereas another might only regard them as being so if they had done so during the year of the survey.
Importance of having reliable demographics Edit
Reliable data as to the size of the gay and lesbian population would be valuable by informing public policy. For example, demographics would help in calculating the costs and benefits of domestic partnership benefits, of the impact of legalizing gay adoption, and of the impact of the military's Don't Ask Don't Tell policy. Further, knowledge of the size of the "gay and lesbian population holds promise for helping social scientists understand a wide array of important questions—questions about the general nature of labor market choices, accumulation of human capital, specialization within households, discrimination, and decisions about geographic location."
The Kinsey ReportsEdit
Two of the most famous studies of the demographics of human sexual orientation were Dr. Alfred Kinsey's Sexual Behavior in the Human Male (1948) and Sexual Behavior in the Human Female (1953). These studies used a seven-point spectrum to define sexual behavior, from 0 for completely heterosexual, to 6 for completely homosexual. Kinsey concluded that all but a small percentage of the population were to one degree or another bisexual (falling on the scale from 1 to 5). He also reported that 37% of men in the U.S. had achieved orgasm through contact with another male after adolescence.
His results, however, have been disputed, especially in 1954 by a team consisting of John Tukey, Frederick Mosteller and William G. Cochran, who stated much of Kinsey's work was based on convenience samples rather than random samples, and thus would have been vulnerable to bias.
Paul Gebhard, Kinsey's successor as director of the Kinsey Institute for Sex Research, dedicated years to reviewing the Kinsey data and culling its purported contaminants. In 1979, Gebhard (with Alan B. Johnson) concluded that none of Kinsey's original estimates were significantly affected by the perceived bias, finding that 36.4% of men had engaged in both heterosexual and homosexual activities, as opposed to Kinsey's 37%.
- Further information: Kinsey Reports
Modern survey results Edit
- 2003: The largest and most thorough survey in Australia to date was conducted by telephone interview with 19,307 respondents between the ages of 16 and 59 in 2001/2002. The study found that 97.4% of men identified as heterosexual, 1.6% as gay and 0.9% as bisexual. For women 97.7% identified as heterosexual, 0.8% as gay and 1.4% as bisexual. Nevertheless, 8.6% of men and 15.1% of women reported either feelings of attraction to the same sex or some sexual experience with the same sex. Half the men and two thirds of the women who had same sex sexual experience regarded themselves as heterosexual rather than homosexual.
- 1988: A study of 5,514 college and university students under the age of 25 found 1% who were homosexual and 1% who were bisexual. 
- 1998: A stratified random sample of 750 males aged 18 to 27 in Calgary, Canada included questions on sexual activity and orientation. 15.3% of men "reported being homosexual to some degree" on the basis of three (often overlapping) measures of homosexuality: (1) voluntary, same-gender sexual contact from age 12 to 27: 14.0%; (2) overlapping homosexual (5.9%) and/or bisexual (6.1%) self-identification: 11.1%; and (3) exclusive (4.3%) and non-exclusive (4.9%) same-gender sexual relationships in past 6 months: 9.2%.
- 2003: A survey of 135,000 Canadians found that 1.0% of the respondents identified themselves as homosexual and 0.7% identified themselves as bisexual. About 1.3% of men considered themselves homosexual, almost twice the proportion of 0.7% among women. However, 0.9% of women reported being bisexual, slightly higher than the proportion of 0.6% among men. 2.0% of those in the 18-35 age bracket considered themselves to be either homosexual or bisexual, but the number decreased to 1.9 among 35-44 year olds, and further still to 1.2% in the population aged 45-59. Quebec and British Columbia had higher percentages than the national average at 2.3% and 1.9%, respectively.
- 1992: A random survey found that 2.7% of the 1,373 men who responded to their questionnaire had homosexual experience (intercourse).
- 1992: A study of 20,055 people found that 4.1% of the men and 2.6% of the women had at least one occurrence of intercourse with person of the same sex during their lifetime. 
- 1988: In a random survey of 6,300 Norwegians, 3.5% of the men and 3% of the women reported that they had had a homosexual experience sometime in their life. 
- 1992: A study of 8,337 British men found that 6.1% had had "any homosexual experience" and 3.6% had "1+ homosexual partner ever." 
- 1990-1992: The American National Health Interview Survey does household interviews of the civilian non-institutionalized population. The results of three of these surveys, done in 1990-1991 and based on over 9,000 responses each time, found between 2-3% of the people responding said yes to a set of statements which included "You are a man who has had sex with another man at some time since 1977, even one time." 
- 1992: The National Health and Social Life Survey asked 3,432 respondents whether they had any homosexual experience. The findings were 1.3% for women within the past year, and 4.1% since 18 years; for men, 2.7% within the past year, and 4.9% since 18 years;
- 1993: The Alan Guttmacher Institute found of sexually active men aged 20–39 found that 2.3% had experienced same-sex sexual activity in the last ten years, and 1.1% reported exclusive homosexual contact during that time.
- 1998: A random survey of 1672 males (number used for analysis) aged 15 to 19. Subjects were asked a number of questions, including questions relating to same-sex activity. This was done using two methods — a pencil and paper method, and via computer, supplemented by a verbal rendition of the questionnaire heard through headphones — which obtained vastly different results. There was a 400% increase in males reporting homosexual activity when the computer-audio system was used: from a 1.5% to 5.5% positive response rate; the homosexual behavior with the greatest reporting difference (800%, adjusted) was to the question "Ever had receptive anal sex with another male": 0.1% to 0.8%.
- 2003: Smith's 2003 analysis of National Opinion Research Center data states that 4.9% of sexually active American males had had a male sexual partner since age 18, but that "since age 18 less than 1% are [exclusively] gay and 4+% bisexual". In the top twelve urban areas however, the rates are double the national average. Smith adds that "It is generally believed that including adolescent behavior would further increase these rates."The NORC data has been criticised because the original design sampling techniques were not followed, and depended upon direct self report regarding masturbation and same sex behaviors. (For example, the original data in the early 1990s reported that approximately 40% of adult males had never masturbated--a finding inconsistent with some other studies.)
In general, surveys quoted by anti-gay activists tend to show figures nearer 1%, while surveys quoted by gay activists tend to show figures nearer 10%, with a mean of 4-5% figure most often cited in mainstream media reports.
It is important to note, however, that these numbers are subject to many of the pitfalls inherent in researching sensitive social issues. It is possible that survey results may be biased by under-reporting, for instance. (See note 1.) The frequent use of non-random samples (white college students) in many studies could also serve to skew the data.
In general, most research agrees that the number of people who have had multiple same-gender sexual experiences is fewer than the number of people who have had a single such experience, and that the number of people who identify themselves as exclusively homosexual is fewer than the number of people who have had multiple homosexual experiences.
In addition, major historical shifts can occur in reports of the prevalence of homosexuality. For example, the Hamburg Institute for Sexual Research conducted a survey over the sexual behavior of young people in 1970, and repeated it in 1990. Whereas in 1970 18% of the boys aged 16 and 17 reported to have had same-sex sexual experiences, the number had dropped to 2% by 1990.  "Ever since homosexuality became publicly argued to be an innate sexual orientation, boys' fear of being seen as gay has, if anything, increased," the director of the institute, Volkmar Sigusch, suggested in a 1998 article for a German medical journal. 
In 2005, as part of the statistical and financial measurements required to implement the UK's new Civil Partnership Act, the British government's H.M. Treasury actuaries calculated that there are 3.6 million British people who may want to enter into a gay or lesbian civil partnership arrangement. This is equal to around 6 percent of the UK population.
- ↑ 1.0 1.1 1.2 1.3 "Demographics of the Gay and Lesbian Population in the United States: Evidence from Available Systematic Data Sources", Dan Black, Gary Gates, Seth Sanders, Lowell Taylor, Demography, Vol. 37, No. 2 (May, 2000), pp. 139-154 (available on JSTOR).
- ↑ COCHRAN, W. G., MOSTELLER, F. and TUKEY, J. W. (1954). Statistical Problems of the Kinsey Report on Sexual Behavior in the Human Male. Amer. Statist. Assoc.,Washington.
- ↑ Sex in Australia: The Australian study of health and relationships, Australian Research Centre in Sex, Health and Society. (Published as the Australian and New Zealand Journal of Public Health vol 27 no 2.)
- ↑ King et al. (1988). Canada, Youth and AIDS Study. Kingston, ON: Queen's University.
- ↑ Christopher Bagley, Ph.D. and Pierre Tremblay, B.Sc., B.Ed., On the prevalence of homosexuality and bisexuality in a random community survey of 750 men aged 18 to 27, The Journal of Homosexuality, Vol. 36, No. 2, 1998, p. 1-18. Abstract
- ↑ Statistics Canada, Canadian Community Health Survey, Cycle 2.1. off-site links: Main survey page.
- ↑ Melbye, M. & Biggar, R.J. (1992). Interactions between persons at risk for AIDS and the general population in Denmark. American Journal of Epidemiology, 135(6), 593-602.
- ↑ ANRS: Agence Nationale de Recherches sur le Sida investigators (1992). AIDS and sexual behavior in France. Nature, 360(3), Dec. 3, 1992, 407-409.
- ↑ Sundet, J.M., et al. Prevalence of risk-prone sexual behaviour in the general population of Norway. In: Global Impact of AIDS, edited by Alan F. Fleming et al. (New York: Alan R. Liss, 1988), 53-60.
- ↑ Johnson, A.M. et al. (1992). Sexual lifestyles and HIV risk. Nature, 360(3), Dec. 3, 1992, 410-412.
- ↑ Dawson, D. & Hardy, A.M. (1990-1992). National Center for Health Statistics, Centers for Disease Control, Advance Data, 204, 1990-1992.
- ↑ 
- ↑ John O.G. Billy, Koray Tanfer, William R. Grady, and Daniel H. Klepinger, The Sexual Behavior of Men in the United States, Family Planning Perspectives, The Alan Guttmacher Institute, vol. 25, no. 2 (March/April 1993). Guttmacher Institute home page
- ↑ Turner CF, Ku L, Rogers SM, Lindberg LD, Pleck JH, and Sonenstein FL (1998). Adolescent sexual behavior, drug use, and violence: Increased reporting with computer survey technology. Science Magazine, 280(5365-8), 867-73.)
- ↑ PDF link
- Diamond, Milton (1993). Homosexuality and bisexuality in different populations. Archives of Sexual Behavior, 22(4), 291-310. (Discusses the design of studies which attempt to measure sexual orientation.)
See also Edit
- Sexual orientation
- Homosexuality and transgender
- ru:Статистические данные о сексуальной ориентации
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