English Lexicon Project
The English Lexicon Project provides a standardized behavioral and descriptive data set for 40,481 words and 40,481 nonwords. Data from 816 participants across six universities were collected in a lexical decision task (approximately 3400 responses per participant), and data from 444 participants were collected in a speeded naming task (approximately 2500 responses per participant).
Web site: http://elexicon.wustl.edu
Balota, David A., Melvin J. Yap, Keith A. Hutchison, Michael J. Cortese, Brett Kessler, Bjorn Loftis, James H. Neely, Douglas L. Nelson, Greg B. Simpson, and Rebecca Treiman. 2007. “The English Lexicon Project.” Behavior Research Methods 39 (3): 445–59. https://doi.org/10.3758/BF03193014. (pdf)