







Metapsy is a university-based research project. It provides access to meta-analytic databases of clinical trials on the effect of psychological interventions on mental disorders or mental health problems.
Metaventory — the meta-science community
A comprehensive community of the people building meta-science and the tools they make — psychology and economics first, growing science-wide.

Matthew B. Jané
PhD candidate in Quantitative Psychology and Neuroscience at the University of Connecticut. Forensic meta-science and statistical methods for meta-analysis.

Meta-Analysis Error Reports
This site compiles forensic reports of errors found in meta-analyses. To submit your own error report, contact me (Matthew B. Jané) at matthewbjane@gmail.com.
Meta Research News | Meta Research
At Meta, research permeates everything we do. We believe the most interesting research questions are derived from real world problems.

Metaudits
Audits of how completely research is described in DataCite, Crossref, ORCID, OpenAlex and repositories. In English, Spanish and German.
‘PACE-Gate’: When clinical trial evidence meets open data access
Science is not always plain sailing and sometimes the voyage is across an angry sea. A recent clinical trial of treatments for chronic fatigue syndrome (the PACE trial) has whipped up a storm of controversy. Patients claim the lead authors overstated the effectiveness of cognitive behavioural therapy and graded exercise therapy by lowering the thresholds they used to determine improvement. In this extraordinary case, patients discovered that the treatments tested had much lower efficacy after an information tribunal ordered the release of data from the PACE trial to a patient who had requested access using a freedom of information request.

Do social media experiments prove a link with mental health: A methodological and meta-analytic review.
Functional analytic psychotherapy
Functional analytic psychotherapy (FAP) is a psychotherapeutic approach based on clinical behavior analysis (CBA) that focuses on the therapeutic relationship as a means to maximize client change. Specifically, FAP suggests that in-session contingent responding to client target behaviors leads to significant therapeutic improvements.
Meta-Research Symposium, 2026
Register for NYU's second annual Meta-Research Symposium, “Meta-Research in Action: Implementing Better Science"
Mapping an Ecology of Integrative Approaches to Addressing the Metacrisis
Dear friends, The Institute of Applied Metatheory (IAM) is pleased to announce the release of a new white paper that charts the landscape of leading-edge responses to the global metacrisis. In “Mapping an Ecology of Integrative Approaches to Addressing the Metacrisis”, IAM scholars Brandon Norgaard, Nicholas Hedlund, PhD, and Claudia Meglin provide a sweeping (albeit

99% impossible: A valid, or falsifiable, internal meta-analysis.
Meta must face youth addiction lawsuit by Massachusetts, court rules
The decision follows a landmark trial in which a jury found Meta and Google negligent for designing social media platforms that are harmful to young people.

We just published a meta-analysis, where one finding is that "number of sickdays" is a bounded, not seldom zero/one-inflated variable, which is unsuitable for meta-analysis based on mean/SD. Today, I came across a meta-analysis including sickday stats like mean=9 and SD=27. doi.org/10.1186/s40359-026-05648-2
Client Challenge
doi.orgIn February 2024, I wrote Scientific Reports about a published meta-analysis claiming that mindfulness interventions affect neural plasticity, 'cementing the neuropsychological basis of mindfulness-based interventions'. The paper was retracted yesterday—here a little summary of the process.🧵
So...my undergrad thesis student is doing a quality analysis of studies found in meta-analyses. She identified a few and we contacted the authors to request their effect sizes and other variables for the studies in their papers. Here's what happened: scientiapsychiatrica.com/index.php/SciPsy/article/view…
The Impact of Social Media on Adolescent Mental Health: A Meta-Analysis | Scientia Psychiatrica
scientiapsychiatrica.comRegCheck ( regcheck.app) has received a Commendation from the Society for Improving Psychological Science! You can check the other awardees below too:
RegCheck
regcheck.appSociety for the Improvement of Psychological Science (SIPS)
🏆We are very pleased to announce the 2026 Awards Winners and Commendations recipients for the Society for the Improvement of Psychological Science! 👏Join us in celebrating the exceptional projects that have revolutionized the field of psychological science. buff.ly/2lUKGFd