Jelte Michiel "J.M." Wicherts (born September 13, 1976, in

Amersfoort Amersfoort () is a city and municipality in the province of Utrecht, Netherlands, about 20 km from the city of Utrecht and 40 km south east of Amsterdam. As of 1 December 2021, the municipality had a population of 158,531, making it the second- ...

) is a Dutch psychologist and professor in the Tilburg School of Social and Behavioral Sciences at

Tilburg University Tilburg University is a public research university specializing in the social and behavioral sciences, economics, law, business sciences, theology and humanities, located in Tilburg in the southern part of the Netherlands. Tilburg University h ...

. His research interests include biases in decision making, as well as scientific misconduct and reproducibility. He has also researched group differences in IQ scores and the

Flynn effect The Flynn effect is the substantial and long-sustained increase in both fluid and crystallized intelligence test scores that were measured in many parts of the world over the 20th century. When intelligence quotient (IQ) tests are initially stand ...

. Together with van Marcel van Assen he runs the Meta-Research Center at his university. Work by the group on

Statcheck Statcheck is an R package designed to detect statistical errors in peer-reviewed psychology articles by searching papers for statistical results, redoing the calculations described in each paper, and comparing the two values to see if they match. I ...

has been featured in ''

The Guardian ''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Gu ...

''.

Education

Wicherts received his master's degree in psychological methods from the

University of Amsterdam The University of Amsterdam (abbreviated as UvA, nl, Universiteit van Amsterdam) is a public research university located in Amsterdam, Netherlands. The UvA is one of two large, publicly funded research universities in the city, the other being ...

in 2002, where he received his Ph.D. in psychological methods in 2007. His Ph.D. thesis was entitled ''Group differences in intelligence test performance'', and his primary Ph.D. supervisor was

Conor Dolan Conor Vivian Dolan (born 5 April 1962 in Blenheim, New Zealand, also sometimes known as C.V. Dolan) is a New Zealand psychologist and professor in the Faculty of Behavioural and Movement Sciences at Vrije Universiteit Amsterdam The Vrije Univ ...

References

External links

* * Dutch psychologists 1976 births Living people Academic staff of Tilburg University University of Amsterdam alumni People from Amersfoort Intelligence researchers {{Psychologist-stub