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David A. Ellis

@davidaellis.bsky.social
704 followers 73 following 112 posts

Professor of Behavioural Science at the University of Bath, UK. Interests = people + technology. Part of the 65% who don’t own an air fryer. www.davidaellis.co.uk

PostsRepliesMedia
Reposted by David A. Ellis
Euan Reid @euanreid.pharmsky.app · 24/07/2026
When patients repeatedly miss medical appointments, health systems often penalise them or drop them from care A new study in @BMCMedicine advocates for a "missingness lens": shifting from punitive rules to trauma-informed, proactive support for vulnerable patients link.springer.com/article/10.1...
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David A. Ellis @davidaellis.bsky.social · 15/05/2026
This is a great marketing ploy. Authors post these across social media and provide free PR to the publisher. Many of those same authors (rightly) shout about the systemic issues surrounding academic publishing. I find that pretty funny.
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John Towse @jntowse.bsky.social · 13/04/2026
One week left to apply… Feel free to drop an email for more details, whether to the project lead (Kate Button), me, or other team members (@denolmo.bsky.social, @davidaellis.bsky.social, Marjan Bakker) #postdoc #AcademicJobs #metasci
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University of Bath School of Management @uniofbathsom.bsky.social · 02/04/2026
Why is caste-based abuse still happening on social media? 🎧👇 Hear more from Dr Pardeep Attri creators.spotify.com/pod/profile/ba…
creators.spotify.com
9. Why is caste-based abuse still happening on social media? With Dr Pardeep Attri by The Research4Good Podcast
Despite social media platforms’ policies, ‘lower-caste’ Dalit individuals face online abuse and harassment severe enough that they often withdraw from these spaces entirely. Why and how is this happen...
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David A. Ellis @davidaellis.bsky.social · 26/02/2026
The DJI Romo robovac had security so poor, this man remotely accessed thousands of them...I might stick with my classic vacuum for a bit longer...https://www.theverge.com/tech/879088/dji-romo-hack-vulnerability-remote-control-camera-access-mqtt
theverge.com
The DJI Romo robovac had security so poor, this man remotely accessed thousands of them
DJI may have fixed it now.
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Reposted by David A. Ellis
Sabrina Norwood @sabrinanorwood.bsky.social · 17/02/2026
📣 New preprint! We brought together experts from academia, major video game studios, NGOs, funding bodies, and civil society groups to ask: what should be prioritised when it comes to the future of video games? 🧵
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David A. Ellis @davidaellis.bsky.social · 10/02/2026
Prose often beats evidence. That's why narrative CVs help the wrong people and why social media bans appear like a 'good idea'. davidalexanderellis.blogspot.com/2026/02/is-n...
davidalexanderellis.blogspot.com
Is the narrative CV dead already?
A blog by David A Ellis. Topics covered include psychology, statistics and computer science.
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David A. Ellis @davidaellis.bsky.social · 05/02/2026
Should really start recording my colleagues angry rants during lab meetings. It could fill several issues of said journal.
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David A. Ellis @davidaellis.bsky.social · 04/02/2026
A paper on social responsibility has been retracted from Human Relations for not receiving ethical approval. The authors disagree with the decision. You genuinely couldn't make this up. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Retraction Notice: “Understanding social responsibility and relational pressures in nonprofit organisations”, 2026
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David A. Ellis @davidaellis.bsky.social · 28/01/2026
Great paper:)
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David A. Ellis @davidaellis.bsky.social · 09/01/2026
"I'm really not interested in the candidate's letters to Aunty Dora." On publication vortexes, the illusion of control, and the mentorship gap in academic publishing. davidalexanderellis.blogspot.com/2026/01/the-...
davidalexanderellis.blogspot.com
The Publication Vortex
A blog by David A Ellis. Topics covered include psychology, statistics and computer science.
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David A. Ellis @davidaellis.bsky.social · 06/01/2026
Was on BBC R4 Today talking about digital skepticism in Gen Alpha. Interesting findings, but worth remembering that each generation will create new digital spaces that work for them, not their parents. www.bbc.co.uk/sounds/play/... (from 2hr 55 min)
bbc.co.uk
Today - 06/01/2026 - BBC Sounds
News and current affairs, including Sports Desk, Weather and Thought for the Day.
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Reposted by David A. Ellis
David A. Sbarra @dsbarra.bsky.social · 26/11/2025
My time as Editor of AMPPS is coming to an end-- here are some parting thoughts. journals.sagepub.com/doi/full/10.... .
journals.sagepub.com
Taking Stock of Advances in Methods and Practices in Psychological Science at the End of the Beginning - David A. Sbarra, 2025
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Lisa DeBruine @debruine.bsky.social · 03/11/2025
The package formerly known as papercheck has changed its name to metacheck! We're checking more than just papers, with functions to assess OSF projects, github repos, and AsPredicted pre-registrations, with more being developed all the time. scienceverse.github.io/metacheck/
scienceverse.github.io
Check Research Outputs for Best Practices
A modular, extendable system for automatically checking research outputs for best practices using text search, R code, and/or (optional) LLM queries.
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David A. Ellis @davidaellis.bsky.social · 28/10/2025
I've been fortunate enough to once again drink coffee while chatting to colleagues about their research! You can catch them all on Spotify open.spotify.com/show/6aSeSkE...
open.spotify.com
Spotify – Web Player
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Reposted by David A. Ellis
John Towse @jntowse.bsky.social · 12/10/2025
Data available on request.
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Reposted by David A. Ellis
Eiko Fried @eikofried.bsky.social · 01/10/2025
Had missed this absolutely brilliant paper. They take a widely used social media addiction scale & replace 'social media' with 'friends'. The resulting scale has great psychometric properties & 69% of people have friend addictions. link.springer.com/article/10.3...
link.springer.com
Development of an Offline-Friend Addiction Questionnaire (O-FAQ): Are most people really social addicts? - Behavior Research Methods
A growing number of self-report measures aim to define interactions with social media in a pathological behavior framework, often using terminology focused on identifying those who are ‘addicted’ to engaging with others online. Specifically, measures of ‘social media addiction’ focus on motivations for online social information seeking, which could relate to motivations for offline social information seeking. However, it could be the case that these same measures could reveal a pattern of friend addiction in general. This study develops the Offline-Friend Addiction Questionnaire (O-FAQ) by re-wording items from highly cited pathological social media use scales to reflect “spending time with friends”. Our methodology for validation follows the current literature precedent in the development of social media ‘addiction’ scales. The O-FAQ had a three-factor solution in an exploratory sample of N = 807 and these factors were stable in a 4-week retest (r = .72 to .86) and was validated against personality traits, and risk-taking behavior, in conceptually plausible directions. Using the same polythetic classification techniques as pathological social media use studies, we were able to classify 69% of our sample as addicted to spending time with their friends. The discussion of our satirical research is a critical reflection on the role of measurement and human sociality in social media research. We question the extent to which connecting with others can be considered an ‘addiction’ and discuss issues concerning the validation of new ‘addiction’ measures without relevant medical constructs. Readers should approach our measure with a level of skepticism that should be afforded to current social media addiction measures.
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Reposted by David A. Ellis
Ruben C. Arslan @ruben.the100.ci · 13/06/2025
Our paper "A fragmented field" has just been accepted at AMPPS. We find it's not just you, psychology is really getting more confusing (construct and measure fragmentation is rising). We updated the preprint with the (substantial) revision, please check it out. osf.io/preprints/ps...
Treemap showing measurement fragmentation across subfields in psychology. Hill-Shannon Diversity 𝐷=1626.05How often measures in the APA PsycTESTS database are (re)used according to the APA PsycInfo database: rarely, the majority are never reused.Our fragmentation index (Hill-Shannon diversity) over time across subdisciplines shows fragmentation rising.
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David A. Ellis @davidaellis.bsky.social · 29/09/2025
Quoted in this @HuffPost piece on why disconnection discourse misses the point. www.huffingtonpost.fr/tech-futurs/...
huffingtonpost.fr
La « digital detox », nouveau symbole hypocrite de la réussite
La détox numérique promet de vous rendre votre liberté et d’améliorer votre santé mentale en vous forçant à stopper le scroll infini. Est-ce trop beau pour être vrai ?
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David A. Ellis @davidaellis.bsky.social · 22/09/2025
PhD project: Can young people’s cognitive style explain associations between social media use and mental health? www.findaphd.com/phds/project.... Supervisory Team: Dr Katherine Button, Professor David Ellis, University of Bath, Dr Becky Mars, University of Bristol.
findaphd.com
GW4 BioMed2 MRC DTP PhD project: Can young people’s cognitive style explain associations between social media use and mental health? at University of Bath on FindAPhD.com
PhD Project - GW4 BioMed2 MRC DTP PhD project: Can young people’s cognitive style explain associations between social media use and mental health? at University of Bath, listed on FindAPhD.com
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David A. Ellis @davidaellis.bsky.social · 22/09/2025
PhD project: Can young people’s cognitive style explain associations between social media use and mental health? www.findaphd.com/phds/project.... Supervisory Team: Dr Katherine Button, Professor David Ellis, University of Bath, Dr Becky Mars, University of Bristol.
findaphd.com
GW4 BioMed2 MRC DTP PhD project: Can young people’s cognitive style explain associations between social media use and mental health? at University of Bath on FindAPhD.com
PhD Project - GW4 BioMed2 MRC DTP PhD project: Can young people’s cognitive style explain associations between social media use and mental health? at University of Bath, listed on FindAPhD.com
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David A. Ellis @davidaellis.bsky.social · 20/09/2025
There will also be opportunities to work across our current suite of grants and research centres, including the Centre for Healthcare Innovation and Improvement and the Bath Institute for Digital Security and Behaviour. @idsbbath.bsky.social
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David A. Ellis @davidaellis.bsky.social · 20/09/2025
We are keen to recruit a researcher with expertise in digital health (i.e., health, psychology, human-computer interaction, human factors, computer science, or a cognate discipline) to primarily support Bath’s contribution to LEAP’s Skills and Knowledge Programme.
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David A. Ellis @davidaellis.bsky.social · 20/09/2025
Shape the Future of Digital Health Education - join the groundbreaking EPSRC-funded LEAP Hub at the @uniofbath.bsky.social www.bath.ac.uk/jobs/Vacancy... .
bath.ac.uk
KD12987 Research Associate/Research Fellow in Digital Health - Jobs at Bath
Research Associate/Research Fellow in Digital Health - Fixed Term Contract
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David A. Ellis @davidaellis.bsky.social · 18/09/2025
Born out of the challenges we faced when trying to collect data for an empirical study on groups, it was expertly lead by Lukas Mayer and @dessibocheva.bsky.social with Joanne Hinds, Liv Brown and @lukaszpiwek.bsky.social link.springer.com/article/10.3...
link.springer.com
Optimeet: A computational tool to enhance participant attendance in group research - Behavior Research Methods
Across disciplines, research often relies on groups of people to participate in experiments or attend events at the same time. Typically, researchers try to maximize attendance by manually identifying...
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David A. Ellis @davidaellis.bsky.social · 18/09/2025
'Optimeet: A computational tool to enhance participant attendance in group research' In this paper we discuss the challenges of conducting group based research and provide a practical, web-based tool that can enhance the scheduling and recruitment of groups for experimental research.
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David A. Ellis @davidaellis.bsky.social · 18/09/2025
See also, the Offline-Friend Addiction Questionnaire (O-FAQ) link.springer.com/article/10.3...
link.springer.com
Development of an Offline-Friend Addiction Questionnaire (O-FAQ): Are most people really social addicts? - Behavior Research Methods
A growing number of self-report measures aim to define interactions with social media in a pathological behavior framework, often using terminology focused on identifying those who are ‘addicted’ to e...
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David A. Ellis @davidaellis.bsky.social · 18/09/2025
An interesting paper that reminds us that psychometric standards in psychology are often not up to the task. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Pseudo Effects: How Method Biases Can Produce Spurious Findings About Close Relationships - Samantha Joel, John K. Sakaluk, James J. Kim, Devinder Khera, Helena Yuchen Qin, Sarah C. E. Stanton, 2025
Research on interpersonal relationships frequently relies on accurate self-reporting across various relationship facets (e.g., conflict, trust, appreciation). Y...
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David A. Ellis @davidaellis.bsky.social · 15/09/2025
I proudly held my C.Psychol status for exactly one year after my PhD—during which time nobody asked about it, cared about it, or even knew what those letters meant. A friend once described it as a VIP pass to a club that doesn’t exist. www.bps.org.uk/news/bps-pub...
bps.org.uk
BPS publishes new guidance on the accurate use of professional titles | BPS
The guidance seeks to support members to present their qualifications and expertise correctly and with confidence.
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David A. Ellis @davidaellis.bsky.social · 15/09/2025
The term 'Chartered Psychologist' is now legally protected, which will finally put a stop to the rampant epidemic of people pretending to be chartered psychologists at dinner parties.
bps.org.uk
BPS publishes new guidance on the accurate use of professional titles | BPS
The guidance seeks to support members to present their qualifications and expertise correctly and with confidence.
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David A. Ellis @davidaellis.bsky.social · 12/09/2025
We are at the British Science Festival @britsciassoc.bsky.social today in Liverpool (Kazimier Garden - Kaz Garden). Come and say hello if you are about - mega busy tho! britishsciencefestival.org/event/tech-v... with @lukaszpiwek.bsky.social
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David A. Ellis @davidaellis.bsky.social · 11/09/2025
Another day, another 'Data available on request' request meets the same fate as my childhood letters to the Tooth Fairy. Honestly, it should just read 'Data available on request (terms and conditions apply: must sacrifice first-born child, solve world hunger, and correctly guess my favorite colour).
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Reposted by David A. Ellis
Oded Rechavi @odedrechavi.bsky.social · 09/09/2025
Lab members watching the PI give a talk on zoom
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David A. Ellis @davidaellis.bsky.social · 20/08/2025
Apple Rumored to Be Developing First Foldable Flip Phone, Set for 2026 Release news.ssbcrack.com/apple-rumore... My thoughts = flip phones provide a bit of nostalgia, but that doesn't guarantee success.
news.ssbcrack.com
Apple Rumored to Be Developing First Foldable Flip Phone, Set for 2026 Release - SSBCrack News
Back in 2005, the clamshell flip phone epitomized high-tech sophistication, allowing users to end calls with a swift snap. Fast forward to today, two decades
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David A. Ellis @davidaellis.bsky.social · 19/08/2025
@hshawberry.bsky.social, Brown O, Hinds J, Nightingale SJ, @jntowse.bsky.social, Ellis DA. The DECIDE Framework: Describing Ethical Choices in Digital-Behavioral-Data Explorations. Advances in Methods and Practices in Psychological Science. 2025;8(3).
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David A. Ellis @davidaellis.bsky.social · 19/08/2025
Hopefully this also serves to remind people that ethics is a conversation. Not a tick-box exercise. As digital technologies become increasingly central to how participants and citizens interact with researchers and governments, the stakes for getting this right have never been higher.
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David A. Ellis @davidaellis.bsky.social · 19/08/2025
Now published, the #DECIDEFramework in #AMPPS. Here we provide a suite of resources to support researchers with ethical considerations in digital behavioural research. journals.sagepub.com/doi/full/10....
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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David A. Ellis @davidaellis.bsky.social · 24/07/2025
Better late than never I suppose.
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Paolo Crosetto @paolocrosetto.bsky.social · 14/07/2025
True, we are probably expecting too much of publishers. Also true: publishers went actively in the opposite direction, *mass commissioning* articles with the special-issue model. MDPI was first, but recently *everyone* is doing it, e.g. the-strain-on-scientific-publishing.github.io/website/post...
the-strain-on-scientific-publishing.github.io
Springer Nature Discovers MDPI – The Strain on Scientific Publishing
Home page for the paper ‘The Strain on Scientific Publishing’ by Mark A Hanson, Dan Brockington, Paolo Crosetto and Pablo Gomez Barreiro
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Dr Heather Shaw @hshawberry.bsky.social · 09/07/2025
When should we have discussions about ethics during the research process ? Looking forward to presenting the DECIDE framework today at #Cyber25 @bpscyberpsychology.bsky.social
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David A. Ellis @davidaellis.bsky.social · 17/06/2025
This appears to be a form of de-evolution, or backward evolution.
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David A. Ellis @davidaellis.bsky.social · 14/06/2025
These changes don't diminish the contributions of individual researchers. However, it will stop institutions from claiming they had a role in research when, in reality, they had zero involvement.
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David A. Ellis @davidaellis.bsky.social · 14/06/2025
This often leads to hit-and-miss hiring decisions, and I hope that these changes will encourage an equal consideration of how the institutional environment can best support future research.
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David A. Ellis @davidaellis.bsky.social · 14/06/2025
Confirmed @ref2029.bsky.social policy: 'Institutions must demonstrate a substantive link to the research output being submitted through an eligible employment relationship.' This will hopefully limit hiring decisions based entirely on 'they have published this thing, so we should hire them for REF'.
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David A. Ellis @davidaellis.bsky.social · 11/06/2025
It's a Pet Sounds kind of evening. RIP Brian Wilson.
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David A. Ellis @davidaellis.bsky.social · 09/06/2025
@uniofbath.bsky.social - new Guidelines for Authorship and Acknowledgements. These guidelines aim to ensure everyone who is conducting or supporting research – regardless of role, seniority or job family – receives appropriate credit for their contributions. www.bath.ac.uk/legal-inform...
bath.ac.uk
Authorship and acknowledgement in research outputs
The University has produced new authorship and acknowledgement guidelines so everyone leading or supporting research is recognised for their contribution.
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David A. Ellis @davidaellis.bsky.social · 08/06/2025
'We replaced a word in a scale with another word. This is all fine'.
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David A. Ellis @davidaellis.bsky.social · 27/05/2025
It's pretty decent, and there's lots to like. It's well balanced regarding existing evidence (although it could go further by flagging methodological issues). I also appreciate that it flags the absence of young people and the health sector more generally + points towards the rise of AI.
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David A. Ellis @davidaellis.bsky.social · 24/05/2025
After many years of searching, I have completed my New Order cassette collection. Factory Records launched a series of boxed cassettes for a limited section of its roster sometime in the 1980s. They contain miniature replicas of the original artwork.
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Adam Kucharski @adamjkucharski.bsky.social · 09/05/2025
A common sentiment is “I can’t share my code because it’s messy and there might be errors” But if it’s that untrustworthy, why are you publishing the results it generates?
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