Carl Emil Seashore, born Sjöstrand (January 28, 1866 – October 16, 1949) was a prominent American psychologist and educator. He was the author of numerous books and articles principally regarding the fields of speech-language pathology and music education. He served as Dean of the Graduate College of University of Iowa. He is most commonly associated with the development of the Seashore Tests of Musical Ability.
Seashore was born in Mörlunda, Hultsfred Municipality, Kalmar County, Sweden to Carl Gustav and Emily Sjöstrand. He emigrated with his family to the United States in 1870 and settled in Iowa. The name “Seashore” is a translation of the Swedish surname Sjöstrand. He graduated from Gustavus Adolphus College in St. Peter, Minnesota during 1891, having studied mathematics, music, classical languages and literature. During his years in college he served as the organist and choir director of a local Swedish-American Lutheran church and his salary there paid most of his college expenses. Seashore became a member of the Iowa Beta chapter of Sigma Alpha Epsilon.
Seashore attended Yale University when that school had just opened the Graduate Department of Philosophy and Psychology. He studied under George Trumbull Ladd, professor of metaphysics and moral philosophy. In 1877, Ladd had authored the standard American textbook Elements of Physiological Psychology. In 1895, Seashore was awarded the school’s first Ph. D in psychology for his dissertation on the role of inhibition in learning.
After a trip to Europe and a subsequent fellowship at Yale, he accepted a permanent position at the University of Iowa where he spent the remaining 50 years of his life. In 1905, he was made chairman of the Philosophy and Psychology Department and in 1908, he was made Dean of the Graduate School.