| Title |
Homosexual orientation in twins: A report on 61 pairs and three triplet sets
|
|---|---|
| Published in |
Archives of Sexual Behavior, June 1993
|
| DOI | 10.1007/bf01541765 |
| Pubmed ID | |
| Authors |
Frederick L. Whitam, Milton Diamond, James Martin |
| Abstract |
Twin pairs in which at least one twin is homosexual were solicited through announcements in the gay press and personal referrals from 1980 to the present. An 18-page questionnaire on the "sexuality of twins" was filled out by one or both twins. Thirty-eight pairs of monozygotic twins (34 male pairs and 4 female pairs) were found to have a concordance rate of 65.8% for homosexual orientation. Twenty-three pairs of dizygotic twins were found to have a concordance rate of 30.4% for homosexual orientation. In addition, three sets of triplets were obtained. Two sets contained a pair of monozygotic twins concordant for sexual orientation with the third triplet dizygotic and discordant for homosexual orientation. A third triplet set was monozygotic with all three concordant for homosexual orientation. These findings are interpreted as supporting the argument for a biological basis in sexual orientation. |
X Demographics
The data shown below were collected from the profiles of 204 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Poland | 40 | 20% |
| United States | 12 | 6% |
| United Kingdom | 5 | 2% |
| Canada | 3 | 1% |
| Italy | 2 | <1% |
| Spain | 2 | <1% |
| France | 2 | <1% |
| Australia | 2 | <1% |
| Germany | 2 | <1% |
| Other | 13 | 6% |
| Unknown | 121 | 59% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 192 | 94% |
| Practitioners (doctors, other healthcare professionals) | 5 | 2% |
| Scientists | 4 | 2% |
| Unknown | 3 | 1% |
Mendeley readers
The data shown below were compiled from readership statistics for 60 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 2% |
| Unknown | 59 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 17 | 28% |
| Student > Ph. D. Student | 9 | 15% |
| Professor > Associate Professor | 7 | 12% |
| Other | 4 | 7% |
| Student > Master | 4 | 7% |
| Other | 8 | 13% |
| Unknown | 11 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 16 | 27% |
| Agricultural and Biological Sciences | 9 | 15% |
| Social Sciences | 9 | 15% |
| Medicine and Dentistry | 7 | 12% |
| Biochemistry, Genetics and Molecular Biology | 3 | 5% |
| Other | 4 | 7% |
| Unknown | 12 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 261. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 February 2024.
All research outputs
#142,479
of 25,748,735 outputs
Outputs from Archives of Sexual Behavior
#97
of 3,777 outputs
Outputs of similar age
#14
of 19,393 outputs
Outputs of similar age from Archives of Sexual Behavior
#1
of 6 outputs
Altmetric has tracked 25,748,735 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,777 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 33.8. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 19,393 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 6 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them