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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 02/10/2026

Do you want to use @clscohorts.bsky.social cohort data to answer causal research questions? Join us for our training webinar on Causal inference in four British cohort studies happening next week. Date: Wednesday, 7 October 2026 Time: 12-2pm Book now 👉 bit.ly/4AL6msA

Causal inference in four British cohort studies
Wednesday, 7 October 2026
12-2PM UK time
UCL Centre for Longitudinal Studies

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 02/10/2026

One in 10 UK 23-year-olds question how serious environmental problems are, but the picture varies sharply by sex and education. New Millennium Cohort Study findings explore what gen Z thinks about the environment, democracy and inequality. Read more: bit.ly/4zw31fR

cls.ucl.ac.uk

What are gen Z’s attitudes to the big social issues of today? | CLS

At age 23, the participants shared their views on some of the key issues facing society today, including the environment, their faith in democracy, and their voting behaviour.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 01/10/2026

Glad you had a good time @tahsinakhatun.bsky.social. Congratulations on your presentation!

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 23/09/2026

🌟We're coming to the end of the second day of our Conference 2026. Thanks so much to all of our amazing presenters, chairs, keynotes, delegates and everyone who made the conference happen! @emlafitzsimons.bsky.social @tommetherell.com @georgeploubidis.bsky.social

Two women at a conference holding a certificate

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 22/09/2026

And we're off! Today is the first day of our conference, bringing together researchers from across disciplines, sectors and career stages to showcase outstanding life course research using cohort data. If you're attending, please do come say hi to our friendly team on the CLS stand!

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 16/09/2026

Heavy social media use has fallen sharply as gen Z move from their late teens into their early 20s, but many still report feeling addicted. New research using the Millennium Cohort Study also finds that rates of online victimisation have more than halved. Read the news item - bit.ly/4AgVh2c

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Heavy social media use falls sharply as gen Z enter their 20s | CLS

Rates of 23-year-olds spending five or more hours a day on social media have dropped by 16 percentage points since their late teens (21% v 37%).

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 10/09/2026

We're at @socsocmed.bsky.social's conference all this week, for the first time! Our cohort data are featuring across a wide range of talks and posters. If you're there, come say hi to our friendly team at our stand. @georgiatomova.bsky.social @spilleron.bsky.social

People at a conference in a historic room

Two women with cuddly toy mascots at a conference.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 21/08/2026

📣 Out now – the latest issue of the CLS Evidence Update! Researchers across the world use CLS cohort data to provide evidence on many of the key issues facing society today. This biannual newsletter places a spotlight on the latest research findings. Follow the link to subscribe 👉️ buff.ly/fsJDF68

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 19/08/2026

With CLS Conference 2026 just weeks away, @clscohorts.bsky.social's loveable mascot, Cohort MemBear went to check out the venue, 44 Hallam Street. 🐻 Join us in September for a celebration of the remarkable possibilities of CLS cohort data. Book now 👉 bit.ly/4xjK8f2

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 11/08/2026

The Millennium Cohort Study linked education administrative dataset for Scotland opens up new opportunities for researchers to explore young people’s educational journeys from primary school through to college, training and employment. Find out more in the user guide - bit.ly/4wWv3jI

Graphic illustration of the Millennium Cohort Study linked education administrative data Scotland

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 06/08/2026

👀 Who's in the presenter roster at this year's CLS Conference, and what are the main themes over the two days? We're celebrating the remarkable possibilities of CLS cohort data with a wide-ranging programme featuring over 120 presenters. Join us in London, 22 and 23 September: bit.ly/4aUUyJ7

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 05/08/2026

📣 Coming soon: this flagship @clscohorts.bsky.social webinar is the best place to learn about our unique series of UK national cohort studies and the research opportunities they offer. Book now 👉️ buff.ly/WLF9fPS

Getting started: An introduction to four British cohort studies
Thursday, 3 December 2026
12:30-2pm UK time
UCL Centre for Longitudinal Studies
Image of family cycling outdoors.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 22/07/2026

📣 New webinar: Physical health in four British cohort studies Join this @clscohorts.bsky.social training webinar to discover how longitudinal data can support research on physical health across the lifecourse. 📅 Tuesday, 3 November 2026 🕟️ 12-1pm UK time Book now 👉️ buff.ly/lLT2U8e

Two women in their workout gear walking down the stairs,
Physical health in four British cohort studies
Tuesday, 3 November 2026
12-1pm UK time

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 16/07/2026

🎉 Booking is now open for the CLS conference 2026 this September! The programme is packed with presentations that showcase outstanding life course research using CLS data. Find out more and join us in London, 22 and 23 September: bit.ly/4aUUyJ7

A banner advert for CLS Conference 2026 showing a mother and daughter in a park. Registration is now open 22-23 Sept 2026. London.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 10/07/2026

New Millennium Cohort Study data release! The MCS core dataset consolidates a wide range of core variables from all 8 sweeps of data collection into one ready-to-use research resource. Follow the link for the user guide, data access info & supporting code: bit.ly/4gs8EoZ @ukdataservice.bsky.social

Image 1 of 4. Text reads: Introducing the MCS core dataset. A new ready-to-use research resource, consolidating data from different sweeps.

Image 2 of 4. Text reads: Key features of the core dataset. Around 170 variables from eight sweeps of data collection across 23 years. Variables that have been measured repeatedly. Data relevant to many different types of research project.

Slide 3 of 4. Text reads: Reasons to use the core dataset. Reduce the time spent preparing data from different sweeps. Tailor the dataset and add in other variables, using code provided.

Slide 4 of 4. Text reads: For the user guide, data access info, and links to supporting code, visit the CLS website – cls.ucl.ac.uk.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 08/07/2026

📢 Join our experts for an overview of the challenges – and opportunities – involved in making causal inferences using @clscohorts.bsky.social cohort data. Book now ➡️ buff.ly/gbWzhwh

A man and woman in a city plaza. The man is smiling as the woman looks at her phone.

Causal inference in four British cohort studies
Wednesday, 7 October 2026
12-2pm UK time
UCL Centre for Longitudinal Studies

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 01/07/2026

New Millennium Cohort Study research shows more time spent on reading, music and arts and crafts is linked with better exam results at 16. However, increasing time spent sleeping is associated with lower academic achievement. Read more bit.ly/4vRgpta

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Hobbies may help teens do better at school | CLS

Spending more time taking part in arts, music and reading for pleasure during mid-adolescence is associated with improved exam results at age 16.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 30/06/2026

Day two of #SLLS2026 - CLS presenters today include @gergobaranyi.bsky.social, David Bann and Liam Wright. Our stand is opposite the reception desk, building J, @ulbruxelles.bsky.social. Hope to see you there! @sllshome.bsky.social

Man in grey shirt and glasses sitting on bench in the sunshine

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 29/06/2026

It’s day one of @sllshome.bsky.social Conference 2026 – we're excited to be back as a sponsor! If you're attending, come say hello to our friendly team. Our stall is in Building J - opposite the registration desk. We’ll be here for the next three days. Let's go! #SLLS2026

A woman holds a mascot teddy bear at a desk covered in documents in front of a glass window

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 19/06/2026

New derived variables from Next Steps, the only England-wide cohort study of millennials, are now available from @ukdataservice.bsky.social. Highlights include: information about children, partners, wellbeing and finances. Explore all the Age 32 data in our updated user guide: bit.ly/4em2up2

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 09/06/2026

Additional data from the Millennium Cohort Study Age 23 Sweep are now available from @ukdataservice.bsky.social. Highlights: information about pregnancies & children, information from cohabiting partners, & geo data enabling external data linkage. See our updated user guide: bit.ly/4fzVy8B

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Reposted by UCL Centre for Longitudinal Studies

George Ploubidis @georgeploubidis.bsky.social · 22/05/2026

Landmark systematic review of the British birth cohorts, providing further evidence of Generational Health Drift. Led by the fantastic Laura Gimeno with superstar team: @dmorenoagostino.bsky.social @martindanka.bsky.social @yiling1015.bsky.social Alice Goisis & @drjenndowd.bsky.social

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 28/05/2026

🚨 The latest CLS working paper links the newly created harmonised fertility histories dataset to data from two British cohorts. The researchers examine how early-life factors influenced those who have not had children at age 50. Read the full paper 👉 buff.ly/Km0k7he

New working paper
'Descriptive findings: Socio-demographic and health correlates of childlessness at age 50 among men and women in two British cohort studies'
By Sam Parsons, Aase Villadsen, Alice Goisis
UCL Centre for Longitudinal Studies
Image of two women sitting on a couch and chatting. One of them has a cup in her hand.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 27/05/2026

New research, drawing on data from the 1970 British Cohort Study, finds people who reported long-term physical and mental health difficulties at age 42 were less likely to be employed at age 51. Read more on the CLS website: bit.ly/3Ruk2WY @georgeploubidis.bsky.social

Black female cafe owner standing outside her premises

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Reposted by UCL Centre for Longitudinal Studies

UCL Centre for Education Policy & Equalising Opportunities @cepeo-ucl.bsky.social · 26/05/2026

Our @dominicpkelly.bsky.social will be presenting his work on “Understanding Late Adolescence and Young Adulthood with the Millennium Cohort Study” tomorrow His talk will feature initial findings from the latest wave of the MCS when the participants were age 23. 1pm @ioe.bsky.social room 790

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 22/05/2026

Millennials and gen Z may spend more years in poor health than their earlier born counterparts, according to a new review of 51 studies comparing UK birth cohorts. Read more on the CLS website - bit.ly/4wKqclU

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Recently born generations may spend more years in poor health | CLS

Millennials and gen Z are more likely to live with obesity and report mental health difficulties earlier in their lives than the baby boomers and generation X.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 15/05/2026

Our mascot Cohort MemBear was delighted to make a trip to the beautiful city of Belfast for our latest consultation on the Age 27 Sweep of the Millennium Cohort Study. Join us (and MemBear) for our final consultation event or submit your ideas online: bit.ly/4nxJre7

A teddy bear sitting with a display of branded chocolates

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Reposted by UCL Centre for Longitudinal Studies

George Ploubidis @georgeploubidis.bsky.social · 07/05/2026

Excited to deliver the keynote at the UCL “200 Years of Health and Wellbeing” symposium 🎉 I’ll present evidence on Generational Health Drift, its impact on economic activity, and argue that the recent decline in Healthy Life Expectancy reflects both mental and physical health. @sriucl.bsky.social

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Reposted by UCL Centre for Longitudinal Studies

UCL Institute of Education @ioe.bsky.social · 06/05/2026

Being NEET in early adulthood has long-term consequences for people’s employment, finances and health in midlife, finds @clscohorts.bsky.social research. The researchers recommends personalised support to address barriers including poor mental health and limited work experience. bit.ly/4usbY7a

ucl.ac.uk

Being NEET in early adulthood has scarring effect into midlife

Being out of work and education between ages 16 and 24 has long-term consequences for people's employment, finances, physical and mental health in midlife, according to new UCL research.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 06/05/2026

Thanks for sharing! It's great to see the widespread interest in this research, which showcases the longitudinal value of the 1970 British Cohort Study 👇

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 30/04/2026

Two weeks to go: @georgeploubidis.bsky.social is delivering the keynote at @ucl.ac.uk's Past, Present and Future symposium on Thursday, 14 May. Living Longer but Not Healthier: The Generational Health Drift uses data from CLS’ cohorts. Register: bit.ly/42wK4ef

Black and white image of UCL main building with text about webinar

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 29/04/2026

This fascinating new research examines important predictors of non-response from a pool of ~ 20,000 variables from 9 sweeps in 18,037 individuals. Find out more in the thread below 👇

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 24/04/2026

⭐️ Happening next week There is still time to register for our upcoming webinar, that will be useful for users or managers of mixed-mode survey data. Book now 👉 buff.ly/TS14EKI

Handling bias in analysis of mixed-mode survey data
CLS and Survey Futures webinar
Thursday, 30 April 2026
12-2pm UK time
A grandmother and grandson driving a bumper car.

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Reposted by UCL Centre for Longitudinal Studies

Georgia Tomova @georgiatomova.bsky.social · 16/04/2026

I’ve been posting and talking about mode effects a lot recently, but if you still don’t know what mode effects are and/or how to deal with them in your analyses, now is your chance to learn! Register to attend our FREE online event on 30-Apr👇🏻 @rjsilverwood.bsky.social @clscohorts.bsky.social

cls.ucl.ac.uk

Handling bias in analysis of mixed-mode survey data | CLS

Join this webinar, run jointly by CLS and Survey Futures, to gain an overview of the challenges of using mixed-mode survey data in your analyses.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 14/04/2026

📢Generation New Era is the focus of @ioe.bsky.social podcast series, Research for the Real World this week as GNE co-director Prof Alissa Goodman discusses how the study can help tackle the challenges facing children and families today. Find out more and listen to the podcast - bit.ly/3ODTH7B

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Following a new generation to understand childhood and inequality | Research for the Real World

How research on babies and families can inform early years policy before inequalities widen.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 14/04/2026

⏰️ Final call for submissions A reminder that the CLS Conference 2026 call for papers will close today, 14 April 2026 at 23.59. Submit a paper, poster or symposium using our cohort data on the CLS website 👉 buff.ly/DbfmyKe

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 09/04/2026

🚨 Less than a week left before the CLS Conference 2026 call for papers closes. If your research uses data from at least one CLS cohort, then submit a paper, poster, or symposium on the CLS website 👉 buff.ly/DbfmyKe 📆 Deadline for submissions is Tuesday, 14 April 2026 at 23:59.

CLS Conference 2025: Last chance to submit
Don't miss this opportunity and submit before the deadline: Tuesday, 14 April 2026.
Photo of a senior couple relaxing on the sofa.

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 01/04/2026

🌸 Spring is here and our mascot Cohort MemBear is ready to spend some time in the sunshine. He will be away from his desk and taking a break along with the rest of the CLS team from 5.30pm this evening. We will be back in action from Wednesday, 8 April. Wishing you a happy Easter!

A teddy bear sitting in some spring flowers with the message Happy Easter!

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 01/04/2026

📣 Working with mixed-mode survey data? Join this free webinar, run by @clscohorts.bsky.social and Survey Futures, to understand the challenges of using mixed-mode survey data and learn statistical methods to handle these in practice. ➡️ Book now buff.ly/QL2Dm7V

Grandmother and grandson sitting in a bumper car.
Handling bias in analysis of mixed-mode survey data
CLS and Survey Futures webinar
Thursday, 30 April 2026
12-2pm UK time

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 31/03/2026

📢 Call for papers for the CLS conference 2026 will now close on Tuesday, 14 April 2026, extended from 8 April. ⏰ If you use CLS cohort data, there's still time to submit a paper! Find out more: buff.ly/oO1rZkw CLS researcher Aase Villadsen provides an update 👇

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UCL Centre for Longitudinal Studies @clscohorts.bsky.social · 30/03/2026

💥 Millennium Cohort Study (MCS) Age 27 sweep open consultation. 👉 Attend a consultation event in London, Edinburgh, Cardiff or Belfast or join us online. What questions should we ask and what measures should we use? Your input is needed! Find out more: buff.ly/yMGpXuM

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