Where sex matters | Data and statistics
Data and statistics
We need accurate data, disaggregated by sex in order to understand differences in the lives of women and men.
Sex is a powerful predictor of almost every dimension of social life including education, employment, crime, physical and mental health. It is difficult to think of an area of life where sex is not an important dimension for analysis.
As Caroline Criado Perez has pointed out, if data is not collected on men and on women then systems – from transportation to medicines and medical devices to tax structures and consumer products – tend to ignore the needs of women, and ”when your big data is corrupted by big silences, the truths you get are half-truths, at best.”
What is the problem?
Increasingly, accurate data collection on sex is being undermined by the conflation of sex, gender and gender identity.
The principle of self-ID has been accepted by many public bodies, replacing sex with self-identified gender when recording crimes and organisational pay gaps, on medical records and in the census.
All three of the UK census authorities (for England and Wales, Scotland and Northern Ireland) had said that they intended to carry guidance to accompany the sex question in the 2021 census that would instruct respondents to answer based on their self-declared gender identity, not on their natal sex or their GRC administrative sex.
Jonathan Portes, former chief economist at the Department for Work and Pensions, said that this would make it much more difficult to track and tackle issues such as the gender pay gap and inequality in childcare, social care, housing and health. There were also legal cases challenging the decision.
Updates
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The Data Bill will fail if the government can’t be clear about sex
The Data Use and Access Bill is being debated in the House of Lords on Tuesday 19th November. The government promises that it will boost the UK economy by £10 billion across 10 years and free up millions of staff hours in the police and NHS, saving hundreds of...
18th November 2024
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Digital identity verification can end the gender wars
The government has unveiled its new Data Bill, which it says will unlock the power of data to grow the economy and improve people’s lives. The bill proposes new rules to support digital identity verification, which will make it easier for people to prove who they are when doing...
25th October 2024
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Does sex matter at the BBC?
The national broadcaster’s mission is to provide “impartial, high-quality and distinctive output and services which inform, educate and entertain”. It is obliged by its charter to be accurate and impartial. Accuracy is something you might expect of any news medium, but the BBC has constant pressure to ensure that...
25th July 2024
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New poll finds voters want to make the Equality Act clear
As reported in the Telegraph, Daily Mail, Express and Sun today, voters across the political spectrum are more supportive of making the Equality Act clear than making it easier for people to change their birth certificates. Sex Matters commissioned a representative survey from an independent polling company to find...
1st July 2024
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Why do people think “transgender rights” have gone too far?
It’s not just about self-ID Support for the law that allows people to change the sex recorded on their birth certificate has fallen a long way over the past few years, most sharply when self-ID was being proposed, in 2018–19 in the UK and then again in 2021–22 in...
14th June 2024
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Another fall in public support for changing sex on birth certificates
The latest results from the annual British Social Attitudes survey show a further fall in support for the law that allows people to change the sex recorded on their birth certificate. It seems that the more this is talked about, the less people like it. Each year the British...
12th June 2024
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Despite the election, you should still respond to consultations
You can still make a difference by responding: here’s how.
7th June 2024
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Getting “sex” right in digital verification services
The UK government is developing a system for digital verification services (DVSs). The Data Protection and Digital Information Bill which is now at committee stage in the House of Lords is establishing the legal framework for this. The legislation will lead to the development of a “digital identity and...
17th April 2024
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How gender ideology broke the census
The 2021 census of England and Wales reportedly cost £900m. Amid much fanfare, data on the transgender population was collected for the first time. But the exercise seems to have gone wrong. The question on gender identity may have been misunderstood, giving strange results. The Guardian reported: “The proportion...
5th April 2024
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Bias at the BBC
What’s the issue? The BBC’s director of complaints has ruled that the presenter Justin Webb broke the BBC’s rules on impartiality when he commented, in a discussion about a women’s chess tournament on Radio 4’s Today programme, that “trans women” are male. This is shocking behaviour from the BBC:...
1st March 2024
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An Epic crisis is unfolding in the NHS
Since October, several NHS trusts in England have been using new £450 million NHS patient-data software produced by US-based IT company Epic Systems. This has been programmed by local teams to record the “gender identity” of babies. For adults, the system has been programmed to register patients according to...
29th November 2023
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Putting remembrance in context
Today, 20th November, is Trans Day of Remembrance, which has been marked annually since 2011 and is intended to commemorate the deaths of trans-identified people caused by transphobia. It has rapidly become a fixture in transactivists’ campaigning calendar. Unevidenced claims about the outsize risks faced by trans people, the...
20th November 2023
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The ONS should admit its gender-identity question failed
The Office for National Statistics has released the final summary of its investigations into the quality of the England and Wales census data from the “gender identity” question. A clear assessment of the quality of the data is important, both because the data will be used to drive understanding,...
8th November 2023
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Data matters
The easiest way to ask about sex is to ask a simple question and expect a straightforward answer.
19th October 2023
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Sex matters in data collection webinar
On 24th October 2023, Sex Matters’ director of advocacy, Helen Joyce, talked with sociologists Michael Biggs and Lucinda Platt about the rights and wrongs of data collection, when it comes to sex and gender identity. Maya Forstater, executive director of Sex Matters introduced a new Sex Matters publication that sets...
17th October 2023
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Response to Victor Madrigal-Borloz’s report on the UK
The UN Independent Expert Victor Madrigal-Borloz has issued an extraordinary report at the end of his ten-day mission to the UK. The thrust of it is the familiar claim that speaking clearly about the material reality of the two sexes amounts to “hate”, alongside the equally familiar dismissal of...
12th May 2023
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Thank you, Kishwer Falkner
We have written to Baroness Kishwer Falkner, Chair of the Equality and Human Rights Commission: Dear Kishwer Falkner Thank you for publishing your letter to the Minister for Women and Equalities setting out, with careful reasoning, why you support revisiting and clarifying the meaning of “sex” as a protected...
11th April 2023
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EHRC publishes letter on clarifying sex in the Equality Act
Sex Matters’ press statement Sex Matters welcomes the letter from Kishwer Falkner, Chair of the Equality and Human Rights Commission, to Kemi Badenoch, the Minister for Women and Equalities, responding to her request for advice on clarifying the definition of the protected characteristic of sex in the Equality Act...
4th April 2023
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What did we learn from the census?
Key points The questions In 2021 the census for England and Wales included a voluntary question on gender identity for those aged 16 years and over. There was also a mandatory sex question which sought to collect information on people’s sex, which was clarified in court by Fair Play...
31st January 2023
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Sex Matters in the Media webinar
On Thursday 26th January at 7.30pm, our director of advocacy, Helen Joyce, talked to communications consultant Conrad Roeber about the media’s failures in reporting on sex and gender, and what readers and viewers can do to make things better. They discussed the Sex Matters Media handbook, our guide for...
18th January 2023
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Risks in the final rush to legislate self-ID in Scotland
The Scottish government’s plans to allow anyone from age 16 upwards who is ordinarily resident in Scotland to obtain a gender recognition certificate (GRC) without any medical assessment are due to be voted on by the Scottish Parliament tomorrow, 21st December. The vote comes barely a week after the...
20th December 2022
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Clarify the Equality Act: sign the petition
The Equality Act 2010 protects everyone’s rights and covers everything from schools to hospitals, pubs to sports, and everybody’s workplace. It includes protection against sex-discrimination, and allows single-sex services. But on 13th December a judge in Scotland pronounced that Equality Act does not recognise biological sex as a protected...
16th December 2022
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Why we have written to UCAS about data
The latest attempt to destroy data on sex by replacing it with data on self-declared “gender identity” is in the higher-education system. The Universities and Colleges Admissions Service (UCAS), the national undergraduate admissions service that acts as gatekeeper to all university places, is planning to change an already-flawed question...
7th December 2022
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Campaign update: Day 1
Yesterday we launched the Make the Equality Act Clear petition, calling on the government to clarify, with a legislative amendment, that sex means sex in the Equality Act 2010. It got an amazing response. In less than 24 hours, 15,000 people signed the petition, and the number is continuing...
3rd November 2022
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Sex Matters’ advice to companies on the FCA’s new reporting requirements
Last week, we reported that the Financial Conduct Authority had issued new rules about its requirements for listed companies to report on the proportion of women on corporate boards, scrapping its earlier proposal for this to be based purely on gender self-identification. The new regulations let companies choose whether to report...
29th April 2022
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Financial Conduct Authority says corporate boards can use sex not gender
The Financial Conduct Authority has issued new rules requiring listed companies to report on the proportion of women on corporate boards, scrapping its earlier proposal to require this to be based on gender self-identification. 439 people and organisations (over 80% of respondents) raised the issue of gender vs sex...
20th April 2022
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Sex in the Census: Reality v Paperwork
The Outer House of the Court of Session in Scotland handed down judgment last week in Fair Play For Women’s challenge to guidance on the census. National Records Scotland plans to tell members of the public that if they are transgender, they can choose how to answer the sex question. ...
22nd February 2022
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A radically simpler system than gender self-ID
Critics of the Gender Recognition Act who call for gender self-identification say the current system is too much of an administrative burden. They are calling on the government to bring people together to find solutions.
21st February 2022
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Do crime victims deserve respect?
We think crime victims deserve respect, dignity, sensitivity, compassion and courtesy, as specified in the Victims’ Code.
10th February 2022
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X passports appeal dismissed
The Supreme Court has unanimously dismissed Christie Elan-Cane’s case for an “X” passport. The judgment states “There is no judgment of the European Court of Human Rights which establishes a positive obligation to recognise a gender category other than male or female, and none which would require the Secretary...
15th December 2021
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No need for sex data on domestic abuse?
Yesterday the Domestic Abuse Commissioner launched a survey for survivors of domestic abuse about their experience of using domestic abuse services across England and Wales: “We are running this survey so that we can understand what is good about domestic abuse services in different areas of the country, and...
7th December 2021
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Sex matters in the City
The Financial Conduct Authority is the regulator for the financial services sector in the UK. They are proposing to set new rules to encourage big companies to have more “female” directors on their boards. The new regulations would cover over 1000 firms, employing tens of millions of people, and...
19th October 2021
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Fighting for the principle of collecting data on biological sex
A guest post by MurrayBlackburnMackenzie. Scottish Parliament Public Petition: Call for signatures In early June MurrayBlackburnMackenzie (MBM) lodged a petition with the Scottish Parliament Public Petitions Committee. It calls on the Scottish government to require Police Scotland to accurately record the sex of people charged or convicted of rape...
27th June 2021
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Truth and reconciliation
How should the public sector leave the Stonewall Champions Scheme?
6th June 2021
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Time to #LeaveStonewall
This is the letter we have sent to the CEOs of the 850 organisations that are members of the Stonewall Diversity Champions Scheme. Re: Leaving the Stonewall Diversity Champions Scheme We are writing to call on you to withdraw from the scheme, both for the sake of your own...
29th May 2021
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Sex, gender and medical data: a way forward
Susan Bewley, Margaret McCartney, Catherine Meads and Amy Rogers published an article in the British Medical Journal calling for clarity about sex and gender in medical records and data.
This "rapid response" from Sex Matters co-founder Maya Forstater was published online by the BMJ.23rd March 2021
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NHS: let’s talk about sex
This tweet by Emma Parnell, Lead Service Designer at NHS Digital, and the associated Medium post “Let’s Talk About Sex” is interesting. Parnell writes in detail about how she worked to remove the question of whether a patient is male or female from the online system for booking COVID...
20th March 2021
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Sex (or gender?) as a hate crime: why the rush?
The push to adopt a gender neutral definition of “misogyny” as a hate crime with amendment 87B to the Domestic Abuse Bill (being debated this afternoon in the House of Lords) is another attempt at the political erasure of sex. Why the rush when the Law Commission is working...
17th March 2021
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Census guidance on the sex question ruled unlawful
Census day is 21 March 2021. Yesterday, in a challenge brought by Fair Play For Women, the High Court ordered the Office for National Statistics to correct the guidance they provide online about how to answer the question “What is your sex?” Until yesterday, the guidance for the 2021...
10th March 2021
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ONS reverses decision to ask clear sex question on the census
The ONS has reversed its decision not to allow self-identified answers to the sex question in next month’s Census. On 22 January, 2021 The UK’s Chief Statistician, Professor Ian Diamond, confirmed on BBC Radio 4’s Today program the question “what is your sex” should be answered according to someone’s LEGAL SEX,...
12th February 2021
Other resources
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Response to the Financial Conduct Authority’s consultation on Diversity and Inclusion
The response from SEEN in the City to the FCA’s proposals (CP23/20) raises serious concerns – particularly that there is no requirement for firms to collect sex data.
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‘Nonsense’ of gender data collected by public bodies set for review
Ben Riley-SMith, political editor for The Telegraph
The Tories are hardening their position on the importance of biological sex being recognised amid the debate about transgender rights. -
Census ‘hugely overstated’ trans population
Edward Malnick, Sunday Political Editor for The Telegraph
Office for National Statistics may have lost its 'credibility' to accurately record sex and gender, suggests Whitehall source -
Clarity matters: how placating lobbyists obscures public understanding of sex and gender
MBM commissioned polling to see what people understand by the terms “transgender woman” and “trans man” tell them about a person’s sex. The findings show that there is substantial confusion.
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Parkrun ‘self-ID’ lets biological male runners ‘smash women’s records’, Olympian claims
Catherine Lough for The Telegraph
An article prompted by what Mara Yamauchi, a member of Sex Matters' advisory group, has written. -
EDI contra science – the misuse of “ethics” in academic research
John Armstrong writes for The Crtitic about how he was asked to survey elite athletes on their views on trans participation in athletics, but the ethics committee at King’s College, London rejected his research proposal on the grounds that the terms “male” and “female” were unacceptable.
1st April 2023
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Fair Play For Women
Campaigning and consultancy group which raises awareness, provides evidence and analysis, and supports policy-makers to protect the rights of women and girls in the UK. Opposes sex self-ID, and also played a large part in the government’s decision to abandon plans to introduce it in England and Wales in...
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Why does the census say there are more trans people in Newham than Brighton?
Sex Matters board member Michael Biggs writes in The Spectator about the confusion caused by unclear language about sex and gender in the 2022 census.
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Gender Identity in the 2021 Census of England and Wales: What Went Wrong?
By Michael Biggs.
The 2021 Census of England and Wales was the first in the world to elicit information on gender identity from an entire population. This paper argues that its results are implausible on the dimensions of geography, education, ethnicity, and religion. -
DBS checks and identity verification: safeguarding loopholes created by changes of identity
An analysis by Keep Prisons Single Sex of the exceptional privacy rights given to those who change their gender as well as their identity.
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How police forces in England and Wales record suspects’ sex in crime and incident reporting
Keep Prisons Single Sex reports that from its research it is clear that many police forces record suspects’ gender identity in lieu of sex registered at birth, frequently on the basis of self-identification.
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Effective communication about pregnancy, birth, lactation, breastfeeding and newborn care: the importance of sexed language
Karleen D. Gribble, Melissa C. Bartick, Roger Mathisen, Shawn Walker, Jennifer Gamble, Nils J. Bergmann, Arun Gupta, Susan Bewley, Jennifer J. Hocking and Hannah G. Dahlen in Frontiers
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Passports must show M or F for sex
An appeal was made to the Supreme Court after the Court of Appeal had concluded that an applicant for a passport must declare their gender/sex as being either male or female, not “unspecified” (“X”).
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Stats for gender
Genspect, an organisation which supports parents with gender-questioning kids, created this website because it believes that the public has a right to reliable data, intuitively categorised, and phrased in simple, jargon-free terms, and wants those who are questioning their gender to have full access to the facts.
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Legal Feminist responds to FCA consultations
Legal Feminist applauds the intention behind the proposals, and is a strong proponent of data-driven policy-making, but felt that the way in which those intentions were to be reflected in rules and policy rendered the proposals at best ineffective and at worst dangerous.
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‘Transitioning Teens’ and an irresponsible BBC
Suicide is a personal tragedy that leaves deep, life-long wounds upon families and friends. Journalists and public figures have been rightly condemned for treating the matter glibly or sensationally. And yet, even as experts warn that poor reporting on the issue could even contribute to ‘imitational suicides’, such advice appears to...
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Sex and the Office for National Statistics: a case study in policy capture
How did the ONS end up in court defending its guidance on a question which most people would deem self-explanatory? Alice Sullivan explains the legislative and political context around gender recognition, and the consequences for data collection.
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Gender markers in passports: internal review of existing arrangements and possible future options
Report by HM Passport Office, 2014
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Swedish cohort study on sex reassignment
Long-Term Follow-Up of Transsexual Persons Undergoing Sex Reassignment Surgery: Cohort Study in SwedenDhejne C, Lichtenstein P, Boman M, Johansson ALV, Långström N, et al. (2011) Long-Term Follow-Up of Transsexual Persons Undergoing Sex Reassignment Surgery: Cohort Study in Sweden. PLOS ONE 6(2): e16885.
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Women count, count women: webinar
Keeping the category of sex mandatory and clear in the census was a campaigning priority of Woman’s Place UK from 2017. In October 2020 they hosted a webinar on the census with Alice Sullivan, Lisa Mackenzie, Jane Clare Jones and Selina Todd.
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Open letter on the census
On December 15 2019, 80 of the UK’s leading social scientists wrote an open letter, which was published in the Times, listing their concerns about letting census respondents list their self-identified gender.
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The political erasure of sex
Jane Clare Jones with Lucy MacKenzie (2020), Oxford University The first in a series, this report ‘Sex and the Census’ focuses on planned changes to the way that data on sex is collected in the UK census and outlines why collecting census data on males and females matters.
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Murray Blackburn Mackenzie
MurrayBlackburnMackenzie is an independent policy analysis collective. Its work on proposals for the 2021 UK census and related research has been cited in the Scottish Parliament and informed parliamentary questions and debate.
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Report of the interdepartmental working group on transexual people
Set up by the Home Secretary in April 1999 to consider, with particular reference to birth certificates, the need for appropriate legal measures to address the problems experienced by transsexual people, having due regard to scientific and societal developments, and measures undertaken in other countries to deal with this...
Publications
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Sex and the Data Bill – briefing for Parliamentarians
The second reading of the Data (Use and Access) Bill in the House of Lords is on Tuesday 19th November 2024. This two-page briefing gives a brief analysis of a problem with the government’s data verification services framework, the results this might cause, and our proposed solution. Large-print version...
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Sex and the Data Bill
Beware of building digital identities on sand.
The government's new data verification services framework has a critical flaw: government data itself is not trustworthy when it comes to the core personal characteristic of sex. -
Briefing on new poll on sex and gender
The law on sex and gender: what policies do the public want? Results of Sex Matters poll.
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Gender-distressed youth and suicide risk – factsheet
The possibility of suicide can be a concern for parents with a child experiencing distress about their sex, and for the professionals working with that family, as well as for officials and politicians setting policy. This factsheet summarises research and addresses myths, misunderstandings and scaremongering.
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Digital verification services
– how the government can solve the problem about sex (or else sleepwalk into chaos)
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Response to ONS consultation on the future of population and migration statistics in England and Wales
We call on the Office for National Statistics to make sure that data on sex is collected clearly and accurately for national statistics.
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Data matters
Advice on the questions you should ask when collecting personal data on sex and transgender identity. See also our template letter of complaint to send when you are concerned that an organisation is misusing your data by confusing sex and gender.
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Data protection complaint template letter
A template letter of complaint to send when you are concerned that an organisation is misusing your data by confusing sex and gender.
For guidance on collecting personal data on sex and gender identity, see our publication Data matters (and send a copy along with the letter). -
Freedom of belief matters
Sex Matters’ response to a call for input by the United Nations’ Independent Expert on protection against violence and discrimination based on sexual orientation and gender identity.
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Groups defending sex-based rights
Overview of groups opposing sex self-ID in the UK, set up by individuals and collectives concerned by the failure of established third-sector organisations to defend women’s sex-based rights, child safeguarding and evidence-based policymaking. Also listed on our website.
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Diversity and inclusion on boards: advice to companies on new FCA reporting requirements
The Financial Conduct Authority has left it up to companies to determine how they define “men” and “women” in their diversity reporting. This briefing aims to assist boards in complying with the new regulations. We recommend the simplest, clearest, most neutral and most coherent approach: reporting based on sex.
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Sex and digital identities
How digital identities can solve the problem with sex and gender identity – and how getting it wrong will make the problem worse.
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Getting it right – diversity and inclusion on company boards and executive committees
The Financial Conduct Authority’s proposal for monitoring diversity and inclusion is well intentioned, but flawed. Sex Matters and Legal Feminist outline the practical and legal problems in abandoning sex-based monitoring for the controversial concept of “gender identity”, and suggest a better solution.
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Sex Matters response to Financial Conduct Authority consultation
Why the listing rules for diversity and inclusion should follow the law.
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Gender Recognition Act reform – evidence submission
We answer the Women and Equalities Select Committee‘s questions and make six recommendations.