Evangelos Katsioulis

Education and clinical training

Evangelos Katsioulis was born March 19, 1976 in Ioannina, Greece. He attended the Aristotle University of Thessaloniki Medical School, completing his medical degree and his subsequent specialization in psychiatry there. His academic record at Aristotle University was strong but not the kind of headline-making prodigy track that some of the other high-IQ figures had: he proceeded through the standard Greek medical-education timeline.

After his medical degree and psychiatric specialty training he began clinical practice in Thessaloniki. He has continued clinical work as a practicing psychiatrist throughout his career, in parallel with his work on intelligence testing and high-IQ societies. This is a significant feature of his profile: many people associated with high-IQ-society work do not have established mainstream careers in adjacent fields, while Katsioulis does.

He also completed a master's degree in medical research methodology and a separate certificate in clinical psychiatry from the European Federation of Psychiatric Trainees. His clinical practice has focused on adult mood disorders, anxiety disorders, and questions at the boundary of psychiatry and intellectual assessment.

High-ceiling testing record

Katsioulis began taking high-ceiling adult IQ tests in the late 1990s and early 2000s. The tests he scored at the top of include the SLSE-IV (developed by Iakovos Koukas), the Cooijmans Intelligence Test (Paul Cooijmans), and the Logima Strictica 36. These are all instruments designed for measurement at the extreme right tail of the IQ distribution, well beyond the WAIS-IV ceiling.

His scores have been tabulated and verified by the World Intelligence Network, the umbrella high-IQ society he founded in 2002. The WIN includes several admission-tier societies (the Cerebrals, the Civitan Test, the Hall of Sophia) with different score thresholds; Katsioulis qualifies for all of them.

The key distinction in his profile compared to other high-ceiling test-takers is the breadth of independent instruments he has scored at the top of. The Mega Test and Titan Test (taken by Christopher Langan and Rick Rosner) are designed by Ronald Hoeflin and share a norming approach. Katsioulis's scores are from a wider set of test designers, which reduces the chance that they reflect a particular test's biases rather than a general ability.

The World Intelligence Network and high-IQ societies

In 2002 Katsioulis founded the World Intelligence Network (WIN), an international umbrella organization for high-IQ societies. WIN consolidates membership administration, test verification, and publication for a number of admission-tier societies with score requirements ranging from the 99.9th percentile to the 99.9999th percentile of test-taker populations.

The WIN model differs from older high-IQ societies (Mensa, Intertel, Triple Nine) in that it admits test scores from a wider set of instruments and standardizes the conversion procedures across them. Critics have noted that this expansion of accepted tests is also an expansion of the methodological caveats that apply to each.

Katsioulis has also founded or co-founded the Greek Mensa branch, the Hellenic chapter of the International Society for Philosophical Enquiry (ISPE), and several smaller national high-IQ societies. He has been the public face of the high-IQ-society community in Greece and southern Europe for over two decades.

Publications and academic work

Katsioulis has published in clinical psychiatry journals on mood disorders, sleep disturbances, and on the assessment of giftedness in clinical settings. His work on giftedness has been distinguished from much of the popular high-IQ-society literature by its grounding in clinical experience with the psychiatric correlates and consequences of unusually high cognitive ability.

He has also published essays and articles on intellectual measurement in the journals associated with WIN societies. These are not peer-reviewed in the way psychiatric clinical publications are, but they have served as the primary published record of his thinking on test methodology and on the design of high-ceiling instruments.

He occasionally presents at psychiatric and educational conferences in Greece and across Europe, often on intersections of clinical psychiatry and the assessment of intellectual outliers. His presentations are professional in tone and tend to avoid the high-IQ-self-promotion register that has affected some of his contemporaries' work.

Public reception and media presence

Katsioulis has been featured in Greek and international press for both his clinical work and his testing record. Greek outlets including Kathimerini, Lifo, and several television interviews have covered him with consistent emphasis on the dual track of his career - psychiatric clinical work alongside testing administration.

Compared to some other people on the high-IQ-society circuit, his public communication has been notably measured. He does not claim a single canonical IQ score but rather emphasizes the consistency of his scores across multiple instruments. He has stated in interviews that no single number is meaningful in isolation and that the methodological caveats around high-ceiling tests apply to his own scores as much as to anyone else's.

He maintains a clinical practice in Thessaloniki alongside his testing-society work. He is married and has children; he has been deliberate about keeping his family's private life out of public coverage. His profile online is professional and academic in tone.

Timeline

• 1976Born in Ioannina, Greece.
• 1994Begins medical studies at Aristotle University of Thessaloniki.
• 2000Medical degree.
• 2002Founds the World Intelligence Network.
• 2003Specialization in psychiatry begins; takes SLSE-IV.
• 2005Top published score on Cooijmans Intelligence Test.
• 2010Hellenic Mensa chapter formally organized.
• 2026Continues clinical psychiatric practice in Thessaloniki; remains president of WIN.

Frequently asked questions

Comparable scorers