Origins & Early Life

Clark David Wissler (September 18, 1870 – August 25, 1947) was an American anthropologist, ethnologist, and archaeologist. Clark David Wissler was born in Cambridge City, Indiana on September 18, 1870, to Sylvania (née Needler) and Benjamin Franklin Wissler. After graduating from Hagerstown High School, he taught in local schools between 1887 and 1892, and studied at Purdue University after the six-month school term ended. The following year in 1893 he was the principal of Hagerstown High School, and then he resigned his post and enrolled in Indiana University.

Pivotal Works & Achievements

Wissler received a Bachelor of Arts in Experimental Psychology from Indiana University in 1897 and a Master of Arts in 1899. He continued his psychology graduate work under James McKeen Cattell at Columbia University. He received his Doctor of Philosophy in psychology from Columbia in 1901. From 1901 to 1903 Wissler performed research on individual mental and physical differences. Wissler's doctoral dissertation used the new Pearson correlation coefficient formula to show that there was no correlation between scores on Cattell's IQ tests and academic achievement.

Enduring Legacy & Impact

Wissler's dissertation eventually...

Contemporary Figures & Related Historical Timelines

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