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Giacomo Bignardi

@bignardi.bsky.social
578 followers 1.2K following 106 posts

Research Associate at the Social, Genetic & Developmental Psychiatry Centre, Kings College London. Interests: developmental psychology, data science, coffee. www.bignardi.co.uk

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Reposted by Giacomo Bignardi
ACAMH - Association for Child and Adolescent Mental Health @acamh.bsky.social · 24/07/2026
Family research in child and adolescent mental health has often been framed as if influence runs mainly from adults to children. In this #OpenAccess JCPP Advances Editorial, @eivindy.bsky.social comments on when children also shape the family environment. bit.ly/4f3FjyS
bit.ly
JCPP Advances | ACAMH Child Development Journal | Wiley Online Library
Family research in child and adolescent mental health has often been framed as if influence runs mainly from adults to children. Bjørndal et al. provide a timely corrective. Using longitudinal networ...
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Shawn Rhoads @shawnrhoadsphd.com · 13/07/2026
1/ I am thrilled to begin sharing the latest release of pyEM, a Python package I built for fitting cognitive computational models to behavioral data using hierarchical expectation maximization (EM) with maximum a posteriori estimation (MAP). github.com/shawnrhoads/...
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ACAMH - Association for Child and Adolescent Mental Health @acamh.bsky.social · 08/06/2026
Interested in exploring the intergenerational consequences of #racism? On 9 June 2026, ACAMH’s #ACEs SIG will hold a brilliant webinar on this very topic. In this Q&A, we caught up with the presenter – Dr. Yasmin Ahmadzadeh – about her research, and her hopes for the event. bit.ly/3PgufW2
bit.ly
Meet the expert: Intergenerational consequences of racism, with Dr. Yasmin Ahmadzadeh
On 9 June 2026, ACAMH’s Adverse Childhood Experiences (ACEs) Special Interest Group will hold its next meeting, Intergenerational Consequences of Racism. We caught up with the presenter - Dr. Yasmin A...
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Peter Tennant @pwgtennant.bsky.social · 12/05/2026
Scientists should be judged not just on their research, but the claims they make. Quitting smoking is one of the most powerful ways you can improve your health. Visiting a museum can never come close. Such a claim should require extraordinary evidence. This study is anything but. 18/18 🧵
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Michel Nivard @michelnivard.bsky.social · 28/04/2026
BGA needs people to communicate if their not going to back out/cancel last minute, or will only be present on 1/2 days, so they can allocate spots to our colleagues and friends who otherwise currently cannot attend due to venue capacity.
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Durham Institute for Medical Humanities @durhamimh.bsky.social · 23/04/2026
🚨 Call for Abstracts: The New Measurement Heretics We welcome proposals from researchers in the philosophy, history, sociology, and anthropology of measurement who would like to address themes around formal & informal measurement concepts ⚖️ Find out more 👇 medhumsplatform.org/call-for-abs...
medhumsplatform.org
Call for Abstracts: The New Measurement Heretics
We invite proposals from researchers in the philosophy, history, sociology and anthropology of measurement for a new edited collection. Deadline 15 June 2026.
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Magnus Johansson @pgmj.bsky.social · 23/04/2026
I've made an R package for Bayesian Rasch #psychometrics with brms models, easyRaschBayes (on CRAN), implementing simple functions to create figures and tables with model fit metrics, etc. Attaching figures from conditional item infit, item-restscore with GK gamma, and the log-likelihood criterion.
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Nicholas Judd @njudd.com · 01/04/2026
Job ad: Postdoc to work with me & @rogierk.bsky.social at the Donders on lifespan development questions from Sept onward! Profile: independent, good quant skills, interested in theory-driven work Please share widely www.careersatradboudumc.com/vacancies/po... #Postdoc #AcademicJobs
careersatradboudumc.com
Vacancy — Postdoctoral researcher cognitive development
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Mark Rubin @markrubin.bsky.social · 17/03/2026
"There are signs that the Bayes Factor is increasingly taking on a role analogous to that of the p-value, serving as a device for the automation of decisions rather than as a tool for substantive inference." Excellent new preprint by Carol Ting on the rise of NHST. #Methodology #stats
arxiv.org
The Rise of Null Hypothesis Significance Testing (NHST): Institutional Massification and the Emergence of a Procedural Epistemology
It has long been a puzzle why, despite sustained reform efforts, many applied scientific fields remain dominated by Null Hypothesis Significance Testing (NHST), a framework that dichotomizes study res...
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Riccardo Fusaroli @fusaroli.eurosky.social · 04/02/2026
as I'm revising my course materials, I keep stumbling upon cool @mc-stan.org developments. Current favorites: 1. your model has funnels and you exhausted reparametrization ideas: metric = "dense_e" makes your HMC learn about covariance btw parameters. Sloooow, but effective! 1/
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Giacomo Bignardi @bignardi.bsky.social · 28/01/2026
Hot take: one of the main benefits of running data analyses in 🐬 Docker 🐬 isn't reproducibility, but saving yourself (or your lab) hundreds or thousands of pounds in computer costs*. Here's how... #datascience #docker #rstudio #python *for a very niche set of people
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Giacomo Bignardi @bignardi.bsky.social · 22/01/2026
video making very strong (& problematic) claims about the supposed damaging effects of screen time on children's education & cognition is trending on youtube (from the US senate committee)... www.youtube.com/watch?v=Fd-_...
youtube.com
Doctor on How Screen Time Hurts Kids' Cognitive Development
YouTube video by C-SPAN
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Giacomo Bignardi @bignardi.bsky.social · 22/01/2026
video making very strong (& problematic) claims about the supposed damaging effects of screen time on children's education & cognition is trending on youtube (from the US senate committee)... www.youtube.com/watch?v=Fd-_...
youtube.com
Doctor on How Screen Time Hurts Kids' Cognitive Development
YouTube video by C-SPAN
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Michael "Shapes Dude" Betancourt @betanalpha.bsky.social · 21/01/2026
On Tues, February 17th I'll be giving a talk and short workshop on (narratively) generative modeling for Princeton's psychology department, psychology.princeton.edu/news-events/.... The talk (and maybe the workshop) will be live-streamed for those interested in attending remotely.
psychology.princeton.edu
Michael Betancourt - Chief Research Scientist, Symplectomorphic, LLC
Generative ModelingOver the last few years the term "generative modeling" has become increasingly popular.  The precise definition of the term, however, tends to be vague and often inconsistent across...
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rogier kievit @rogierk.bsky.social · 18/12/2025
I've used Lavaan almost every (work)day for 15 years, but this open source labour of love has never received proper institutional support. I'm delighted to be a small part of an 1.5M OpenScienceNL award, led by Jorgensen, to completely revamp and futureproof Lavaan www.openscience.nl/en/news/45-p...
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Giacomo Bignardi @bignardi.bsky.social · 09/12/2025
Wow if you have a UK student loan this is definitely worth checking, Xmas is on @martinlewis.moneysavingexpert.com again this year 🎄🎄https://www.moneysavingexpert.com/students/student-loan-overpayment-refund
moneysavingexpert.com
Student loan overpayments
This MoneySavingExpert guide can help you check if you've overpaid your student loan and reclaim the cash if so. 10,000s overpay their student loans – have you?
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Sara De Felice @saradefelice.bsky.social · 01/12/2025
In 2021 we reported that live learning outperformed recorded learning. In a new preregistered analysis, my first senior-author paper led by Stan de Visser (pre-print), we find that this benefit does not increase with interactivity. The potential to interact may be enough to boost learning. A thread:
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Payam Piray @payampiray.bsky.social · 17/11/2025
Happy to share my new paper published in @nathumbehav.nature.com: A critical look at statistical power in computational modeling studies, particularly those based on model selection. www.nature.com/articles/s41...
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Dan Lewer @danlewer.bsky.social · 27/10/2025
We wrote an article explaining why you shouldn't put several variables into a regression model and report which are statistically significant - even as exploratory research. bmjmedicine.bmj.com/content/4/1/.... How did we do?
A "methods primer" article in the journal "BMJ Medicine", titled "Factors associated with: problems of using exploratory multivariable regression to identify causal risk factors"
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 20/10/2025
New paper by brilliant final yer PhD student Blanca Piera Pi-Sunyer and colleagues, including 3 undergraduate students (Evans, Ratcliffe, Janaarthanan) 🤩 The Relationship between Perceived Friendship Quality and Self-Judgements in Adolescent Girls from London journals.sagepub.com/doi/epub/10....
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Gates Cambridge @gatescambridge.bsky.social · 31/01/2025
Blanca Piera Pi-Sunyer on how to make the world a better place for young people, the cumulative impact of adversity & how to mitigate it in the Gates Cambridge podcast, So, now what? - @cambridgeuni.bsky.social
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Magnus Johansson @pgmj.bsky.social · 10/10/2025
This is really neat. I have borrowed the reliability() function to my `easyRasch` package, and use plausible values instead of fully Bayesian estimation to produce similar estimates/CIs, see code example below. RMU point estimates are similar to EAP reliability. pgmj.github.io/easyRasch/re...
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Giacomo Bignardi @bignardi.bsky.social · 08/10/2025
I've added a new example to our paper's repo, demonstrating how our reliability method replicates Cronbach's alpha for a simple model, but also how our method can account for: (i) binary data, (ii) varying numbers of items per pps, & (iii) improvement over trials www.bignardi.co.uk/8_bayes_reli...
bignardi.co.uk
Estimating Mean Score Reliability with RMU
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Giacomo Bignardi @bignardi.bsky.social · 01/10/2025
New preprint with @rogierk.bsky.social @paulbuerkner.com - we introduce "relative measurement uncertainty" - a reliability estimation method that's applicable across a broad class of Bayesian measurement models (e.g., generative-, computational- and item response theory-models osf.io/h54k8
osf.io
OSF
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Giacomo Bignardi @bignardi.bsky.social · 24/09/2025
📣New study 📣 We examined the prevalence of food insecurity and its association with mental health and wellbeing, using the 2023 @oxwell.bsky.social survey of 38,430 children and young people aged 8–19 in England with @sjblakemore.bsky.social @minafazeloxford.bsky.social doi.org/10.1002/jcv2...
doi.org
JCPP Advances | ACAMH Child Development Journal | Wiley Online Library
BackgroundWe aimed to assess the prevalence of food insecurity reported by children and young people in four areas of England in 2023 and examine its association with mental health and wellbeing. Met...
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 31/08/2025
New paper! Excellent work by @bignardi.bsky.social and @minafazeloxford.bsky.social, who leads the Oxwell study The prevalence of food insecurity and its relationship with wellbeing in a large, cross-sectional study of children and young people in England Out soon. Preprint: osf.io/preprints/ps...
osf.io
OSF
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Thalia Eley @thaliaeley.bsky.social · 07/08/2025
Delighted to be hiring a new Clinical Psychology Lecturer to come and join our vibrant environment at the SGDP Centre @kingsioppn.bsky.social @kingscollegelondon.bsky.social please share! my.corehr.com/pls/coreport...
my.corehr.com
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Kevin M. King @kevinmking.bsky.social · 20/06/2025
@drandreahoward.bsky.social, hold my beer.. Latent class growth models are worse than useless, and we've known this for more than 20 years. (See Bauer 2007)
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Alex Griffin @alexegriffin.bsky.social · 03/06/2025
🚨 New paper alert! 🚨 Larysa Zasiekina, @sjblakemore.bsky.social‬, Iryna Hlova, @bignardi.bsky.social‬ and I investigated the prevalence of PTSD in adolescents who have experienced war. Our systematic review and meta-analysis is linked below, but read on for highlights… 🧵 doi.org/10.1080/2000...
doi.org
Prevalence of war-related posttraumatic stress disorder in adolescents: a systematic review and meta-analysis
Background: Posttraumatic stress disorder is common in civilians who are currently experiencing, or who have experienced, war. Most previous studies have focused on adult populations and, despite t...
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Giacomo Bignardi @bignardi.bsky.social · 27/05/2025
Amazing funded phd opportunity with great supervisors👇👇👇👇👇
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Charlotte Santry @charlottesantry.bsky.social · 19/05/2025
Revealed: 🥣 Diluted juice, no fruit or hot food: how schools are cutting their breakfast club offering due to squeezed funding in government pilot 🥣 Concerns about SEND provision at “inclusive” breakfast clubs
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Georgia Turner @georgiaturner.bsky.social · 04/04/2025
Does anyone know of an available dataset including (1) passively collected data on what Apps are being used in the foreground of one's phone and when, & (2) mental health questionnaire measures (from 1 or many time points)? Thank you 🙏
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Dr Kathryn Bates @kathrynbates.bsky.social · 03/03/2025
Our approach to understanding how adversities impact adolescent development often neglects the specificity and complexity of adolescence. In our new review, we propose the adolescent adverse experiences framework to capture adverse experiences at multiple levels: www.nature.com/articles/s41...
nature.com
A framework for understanding adverse adolescent experiences - Nature Human Behaviour
Adolescence (ages 10–24) is characterized by cognitive, behavioural and social development. This Review proposes the adverse adolescent experiences (AAEs) framework to categorize and examine potential...
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Anna Clarke @annaclarke.bsky.social · 30/01/2025
Data published today from the English Housing Survey shows overcrowding for social tenants having almost doubled in the last 20 years - now nearly one in 10 are overcrowded.
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Giacomo Bignardi @bignardi.bsky.social · 16/01/2025
Dress code: robes and skullcap optional "...this is an official speaker invitation, to be a Distinguished Speaker at the upcoming “6th Global Conclave on Neurology and Neurological Disorders" (NEURO Conclave 2025)"
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Giacomo Bignardi @bignardi.bsky.social · 10/01/2025
New paper! Adolescents more susceptible to anti-social influence on an experimental task reported lower compliance with future COVID social distancing rules. Prosociality also predicted future compliance, but less clear associations for other factors. OA Link: doi.org/10.1016/j.he...
sciencedirect.com
Mental health and socio-cognitive predictors of adherence to COVID-19 social distancing rules in adolescents in England
The COVID-19 pandemic prompted governments worldwide to introduce social distancing measures, including school closures and restrictions on in-person …
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Giacomo Bignardi @bignardi.bsky.social · 10/01/2025
APA-style Bayesians! Are we doing 95% CrI or 95%CI for credible intervals? #bayesianstatistics #psychology
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Duncan Astle @duncanastle.bsky.social · 10/01/2025
We are hiring! We're looking for a great project manager to help with a large-scale Wellcome funded study. If you know of anyone that this might appeal to, please share. www.jobs.cam.ac.uk/job/49880/
jobs.cam.ac.uk
Project Manager (Part Time, Fixed Term) - Job Opportunities - University of Cambridge
Project Manager (Part Time, Fixed Term) in the MRC Cognition and Brain Sciences Unit at the University of Cambridge.
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Cognitive Science Society @cogscisociety.bsky.social · 23/12/2024
We’re seeking nominations for up to five outstanding dissertations in cognitive science for the Glushko Dissertation Prize! Each prize will be accompanied by a ✨$10,000 award✨ Self-nominations are welcome! Learn more and nominate at cognitivesciencesociety.org/glushko-diss... 🗓️ Deadline: Jan. 18
Nominations for the Glushko Dissertation Prize are open until January 18
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Giacomo Bignardi @bignardi.bsky.social · 08/01/2025
American Psychological Association giving big South Park energy this morning
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Amy Orben @orbenamy.bsky.social · 08/01/2025
🚨 My team is hiring an undergraduate intern (UK universities only) - a great opportunity, if I can say so myself! Please share widely. Want more info? See here: www.linkedin.com/feed/update/...
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Giacomo Bignardi @bignardi.bsky.social · 07/01/2025
Looking for a reference - does anyone know of any large, recent studies describing age trends in depression & anxiety in childhood and adolescence ideally separated by gender? Longitudinal or cross-sectional. #devpsy #devpsyc #devpsychsky #devpsycsky #clinpsy
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Giacomo Bignardi @bignardi.bsky.social · 06/01/2025
New year, new keyboard (switches & keycaps).
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 23/12/2024
New paper by @bignardi.bsky.social et al Mental health and socio-cognitive predictors of adherence to COVID-19 social distancing rules in adolescents in England www.cell.com/heliyon/full...
cell.com
Mental health and socio-cognitive predictors of adherence to COVID-19 social distancing rules in adolescents in England
The COVID-19 pandemic prompted governments worldwide to introduce social distancing measures, including school closures and restrictions on in-person socialising. However, adherence to social distancing was challenging for many – particularly adolescents, for whom social interaction is crucial for development. The current study aimed to identify individual-level influences on adherence to social distancing in a longitudinal sample of adolescents aged 11-20 years in England, who took part in a randomised controlled trial.
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Emma Soneson @emmasoneson.bsky.social · 19/12/2024
*Networks of care for the modern adolescent* 🫶🌻 In our new paper, we combine a #network approach + applied research lens to explore where #youngpeople are accessing #mentalhealth support & how helpful they find it. w/ Simon R White & @minafazeloxford.bsky.social www.cambridge.org/core/journal...
[Figure 2 from the publication]: shows a network diagram of 18 different types of mental health support young people report accessing in the last year, alongside perceived helpfulness.
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Giacomo Bignardi @bignardi.bsky.social · 18/12/2024
Signed! Could not imagine a better place to do a PhD than the MRC Cognition and Brain Sciences Unit.
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Julia M. Rohrer @dingdingpeng.the100.ci · 13/12/2024
Do you know any early career researchers in the UK who have contributed something special to improve research practices? The call for the 2025 Dorothy Bishop award is open now! Nominations close on 26 January 2025. www.ukrn.org/2024/12/12/t...
A picture of a trophy. The real award looks much cooler.
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 12/12/2024
I wrote an article about my dad's death, and how it affected my views on assisted dying, published in the Times Free version here
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Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 21/11/2024
**We are recruiting** Seeking a postdoc to work on a Wellcome-funded cohort study focusing on social-cognitive processing in typically developing children and adolescents (aged 8-18 years) and children and adolescents with 22q11.1 deletion syndrome. www.jobs.cam.ac.uk/job/49291/
jobs.cam.ac.uk
Research Assistant/Research Associate (Fixed Term) - Job Opportunities - University of Cambridge
Research Assistant/Research Associate (Fixed Term) in the Department of Psychology at the University of Cambridge.
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