Stuart James Ritchie is a Scottish psychologist and science communicator known for his research in human intelligence. He works at the artificial intelligence research company Anthropic.
Ritchie has served as a lecturer at the Institute of Psychiatry, Psychology and Neuroscience at King's College London since the summer of 2018. He was previously active in researching intelligence as a postdoctoral researcher at the University of Edinburgh. In 2021, his book Science Fictions was nominated for the ã25,000 Royal Society Prize for Science Books but lost to Merlin Sheldrake's Entangled Life. Ritchie wrote a newsletter titled Science Fictions for the newspaper i (on Substack prior to 2023) which, like his book of the same name, focused on scientific controversies and bias and fraud in scientific research.
Since 2023, he has co-hosted a weekly podcast called The Studies Show with science writer Tom Chivers, where they discuss the studies behind controversial scientific issues.