Marcello Truzzi

Marcello Truzzi
Born	(1935-09-06)September 6, 1935 Copenhagen, Denmark
Died	February 2, 2003(2003-02-02) (aged 67) Ann Arbor, Michigan, U.S.
Alma mater	Cornell University
Occupation	Professor of Sociology
Employer	Eastern Michigan University
Known for	CSICOP Zetetic Scholar (journal) International Remote Viewing Association (advisor)

Marcello Truzzi (September 6, 1935 – February 2, 2003) was an American sociologist and academic who was professor of sociology at New College of Florida and later at Eastern Michigan University, founding co-chairman of the Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP), a founder of the Society for Scientific Exploration,^[1] and director for the Center for Scientific Anomalies Research.

Truzzi was an investigator of various protosciences and pseudosciences and, as fellow CSICOP cofounder Paul Kurtz dubbed him "the skeptic's skeptic". He is credited with originating the oft-used phrase "Extraordinary claims require extraordinary proof", though earlier versions existed.