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The Kinsey Data: Marginal Tabulations of 1938-1963 Interviews Conducted by the Institute for Sex Research. Augments data in the original 1948 and 1953 studies and discusses Kinsey's interview and sample. Scope: To describe individual and group variations in human sexual behavior using taxonomic methods (primarily concerned with the measurement of variation in series of individuals that stand as representatives of the species being studied) from biology. Kinsey sought to accummulate "an objectively determined body of fact about sex" (p. He looked at quantifiable male sexual "outlets" to orgasm: masturbation, nocturnal emissions, heterosexual petting, heterosexual intercourse, homosexual relations, and intercourse with animals of other species; and at what factors might account for variations in sexual behavior, including marital status, age, educational level, occupational class, rural-urban background, religious group, geographic origin, and age at adolescence. Data was gathered from 1938 to 1963, when the project was closed. Sample: 5300 white males and 5940 white females provided almost all the data, with the majority of participants being younger white adults with some college education. ") Kinsey tried to compensate for volunteer bias in his sample by interviewing 100% of the individuals available in a given organization or group. Approximately 25% of the sex histories came from these 100% groups. In each history a subject would be questioned on up to 521 items, depending on his/her specific experience (the average in each case being near 300). Histories covered social and economic data, physical and physiologic data, marital histories, sexual outlets, heterosexual histories, and homosexual histories.
More Information Anal Sex 11% of males reported, in marriage, a frequency of anal sex ranging from a single attempt to often, (Table 334, p 383, Kinsey Data, College Sample, as corrected by data analysis of computer tape, 4/93). There is little data in the original Kinsey Studies regarding heterosexual or homosexual anal sex. Kinsey found some anal play in some of the male marital histories and occasional instances of anal coitus but not enough to determine "the incidence of individuals who are specifically responsive to such stimulation," (p. He reported, among the male homosexual, occasional individuals brought to orgasm anally, (p. For females, Kinsey said that good incidence data was not available, (p.
More Information Bisexuality Males: Kinsey estimated that nearly 46% of the male population had engaged in both heterosexual and homosexual activities, or "reacted to" persons of both sexes, in the course of their adult lives (p. Females: Kinsey found only a very small portion of females with exclusively homosexual histories. He reported that between 6 and 14% of females (ages 20-35) had more than incidental homosexual experience in their histories.
For further male/female comparisons on premarital sex, see p 330-32, Female. Frequency of Marital Coitus Females (average frequency reported): 28 times a week, in late teens 22 times a week, by age 30 10 times a week, by age 50 Male data were comparable. For further male/female comparisons of Martial Coitus, see p 392, Female. Positions, Coital Kinsey found the most frequently reported coital position to be male-above, and the most common variant position to be female-above. Females: 100% used male-above position in marital coitus 45% used female above 31% used side-by-side positions 15% rear vaginal entry 9% sitting; In about 35% of the male College Sample histories the female-above-male position was used (Table 95, p 372, Male). Preference for Coitus in Light or in the Dark: 40% of the males in the sample preferred to have sexual activities in some light 19% of the females preferred to have sexual activities in some light, (p.
More Information Erogenous Zones The Kinsey interviews showed that there is no part of the human body which is not sufficiently sensitive to effect erotic arousal for at least some individuals in the population. He estimated that breasts and especially the nipples of the breasts were erotically sensitive in perhaps half of the females (with breast stimulation alone sufficient for orgasm in a very small percentage of females), (p. There were some 2 % of females who even by their late 40s had never recognized any sexual arousal under any sort of condition.
More Information Extramarital Sex Incidence Males: Kinsey estimated that approximately 50% of all married males had some extramarital experience at some time during their married lives (p. Females: Among the sample, 26% of females had had extramarital sex by their forties. Between 1 in 6 and 1 in 10 females from age 26 to 50 were engaged in extramarital sex, (p.
More Information Fantasy Males: * 84% of the males in the sample indicated that they were sometimes aroused by thinking of sexual activities with females (p. Females: * 31% insisted they had bever been aroused by thinking about males or sexual relations with them.
More Information Foreplay Duration of foreplay in marriages, (from sexual histories): 11% of marriage histories, foreplay lasted 3 min. See also Tables 316-323, p 365-372, Kinsey Data for techniques of foreplay.
More Information Homosexuality Kinsey said in both the Male and Female volumes that it was impossible to determine the number of persons who are "homosexual" or "heterosexual". It was only possible to determine behavior at any given time.
More Information Masturbation Males: 92% of males reported that they had masturbated (p. Females: 62% of females reported that they had masturbated (p. Masturbation techniques reported by females: 84% used clitoral and labial manipulation 20% used vaginal insertion 11% used breast stimulation 10% used thigh pressure 5% muscular tension 2% had fantasy alone to reach orgasm; In males, masturbation after marriage occurred with reduced frequency (p. For further female/male comparisons of masturbation, see p 173, Female.
More Information Nudity Kinsey found that attitudes toward nudity differed by level of education and socioeconomic status. Still, about half (41%) of males in the College Sample reported sleeping nude, and half of the married females in the sample had regularly slept nude, (p.
Males: 15-20% of males in their teens and twenties reported that they were capable of repeated orgasm in a limited period of time. Kinsey stated that most men lost this capacity by age 30 or 40, (p. For comparisons of orgasm in marital coitus, see p 392-393, Female. Nocturnal Sex Dreams and Orgasms: Approximately two-thirds of females reported overtly sexual dreams (and Kinsey estimated over the life course that 70% of females experienced sex dreams), and almost 100% of the males (p. By age 45, 37% of females in the sample had experienced a sex dream with orgasm (p. The frequencies with which the average female had nocturnal orgasms stayed fairly constant for single and married females of all ages (adolescence to 50 yrs. The highest incidence (70%) and frequency for males came in the late teens, but declined in the thirties, (p.
More Information Peak Performance and Maximum Activity, Age of In the male, the average maximum sexual frequencies for the total sexual outlets occur between 16 and 20, (Table 45, on p 226, and Table 60, on p 266, Male). In the female, solitary sexual activities (such as masturbation, nocturnal dreams to orgasm) gradually rise to their maximum point. They level off and then decline after 55 or 60 years of age. Kinsey thought that female instance of coitus was dependent on the male's sexual behavior.
More Information Sadomasochism Kinsey's studies do not say much about sadomasochistic behaviors. Some 12% of females and 22% of males reported having an erotic response to a sadomasochistic story, and 55% of females and 50% of males reported having responded erotically to being bitten, (p.
More Information For More Information The above data have been provided for quick reference. We have tried to present this data in a clear and concise way; something made difficult by the complexity of Kinsey's monographs.
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