The Watson-Glaser has a distinguished history, dating back to its initial development in 1925 by Goodwin Watson and E. M. Glaser, a professor and student at Columbia Teachers College. The first version was the Watson tests of fair-mindedness, published in 1925. The first extensive revision was the Watson-Glaser Tests of Critical Thinking, published in 1941. Then followed a series of revisions aimed at creating parallel forms, reducing the number of items, and improving the test. In 1994 a Short Form was published which increased its popularity in corporations. In June of 2009, Pearson published the Watson-Glaser II Critical Thinking Appraisal, introducing its easy-to-use RED model of critical thinking.