Research • Metascience • Mental Health • Assessment

Ellie Bastos Degobi, PhD

I'm a hard advocate for open-science practices, in addition to my interest in metascience and philosophy of science. I also investigate mental health as a complex system, integrating network analysis, psychometrics, causal reasoning, and methodological development, with particular, though not exclusive, attention to eating disorders, depression, and autism.

Portrait of Ellie Bastos Degobi
Quantitative Psychologist Metascience • Mental health • Measurement

Research Profile

My research combines substantive questions in metascience, mental health with quantitative and methodological work. I examine open-science as a system that needs not only editorial reforms, but also requires training, positive atitudes, and social norms. In mental health research, I see psychopathology as a dynamic system in which symptoms, behaviors, cognition, and context can influence one another, with particular—though not exclusive—attention to eating disorders, depression, and autism. Alongside this work, I develop and critically evaluate psychometric and statistical methods for measuring psychological constructs and improving the interpretation of psychological evidence.

20+Publications
7+International Collaborations
10+Years in Research
R + PythonTools

Research agenda

Research areas

My research connects metascientific works, mental health theory, measurement, complex systems, and experimental intervention research. I aim not only to describe psychopathology, but also to identify mechanisms and test strategies capable of reducing symptoms and preventable harms.

Research area

Mental Health Networks

I study mental health through network and complex-systems perspectives, examining how symptoms, behaviors, cognitive processes, and contextual factors interact over time. My work has particular—though not exclusive—emphasis on eating disorders, depression, and autism. I use causal discovery with cross-sectional and longitudinal data, in addition to causal methods and experiments to move beyond simple associations and examine mechanisms, temporal dynamics, heterogeneity, and potential targets for intervention.

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Research area

Metascience and Open Science

I am strongly interested in the adoption of open-science practices and in metascience as a field of research. My PhD in Psychometrics had a substantial metascientific focus, particularly on how measurement assumptions and analytical decisions shape the interpretation and use of psychological test scores. Although I have not yet had the opportunity to develop a sustained research program in this area, I aim to expand this line of work and contribute more actively to research on transparency, reproducibility, and methodological quality in psychology.

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Research area

Psychometrics

My work in psychometrics focuses on improving how psychological constructs are conceptualized, measured, and modeled. My work involves critical thinking on psychometric assumptions before choosing a model. I apply and develop methods involving item response theory, Rasch modeling, factor analysis, measurement invariance, differential item functioning, and reliability assessment. A central aim of my research is to address methodological limitations in psychological measurement and to produce instruments and analytical approaches that are valid, robust, and suitable for diverse populations and research contexts. I also I develop, compare, and refine psychometric methods, with attention to reproducibility, simulation, valid inference, transparent workflows, and the practical consequences of analytical choices.

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Ongoing work

Current projects

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Rationality and Media Literacy

This research investigates whether rationality predicts critical news interpretation beyond general intelligence. Although intelligence measures cognitive ability and abstract reasoning, it does not fully […]

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Achilles Heel(s) of Psychometrics

Psychometric models rely on two foundational but often untested assumptions: the causal structure underlying latent variables and the numerical level at which these variables […]

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Publish or Perish?

Publish or Perish? is an interactive research-integrity game about open science and questionable research practices. Players examine fictional studies, identify problems such as selective reporting, […]

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Interested in collaborating?

I welcome collaborations involving metascience, mental health, network analysis, psychometrics, methodological development, open science, and reproducible quantitative research.

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