Calvin S. Hall

Calvin Springer Hall, Jr. (January 18, 1909 – April 4, 1985), commonly known as Calvin S. Hall, was an American psychologist who studied in the field of dream interpretation and analysis. He began his research on dreams in the 1940s, and from there he wrote many books, A Primer of Freudian Psychology and A Primer of Jungian Psychology being the best known, and developed the Quantitative Coding System. Hall's work on temperament and behavior genetics is now only a historical footnote, but was an aid to scientific studies and theories of today.

Hall was born in Seattle, Washington. He first studied psychology at the University of Washington as an undergraduate, working with a well-known behaviorist, Edwin Guthrie. He transferred to the University of California, Berkeley, his senior year because of his opposition of the ROTC course required at Washington. At Berkeley he studied with a purposive behaviorist, Edward Tolman, and received his BA in 1930, continuing on there as a graduate student with Tolman and Robert Tryon, earning his PhD in 1933.

After receiving his PhD, Hall then taught for three years at the University of Oregon as an assistant professor. Because of his growing research reputation, he was appointed departmental chair and professor in psychology in 1937 at Western Reserve University. He held these positions for the next 20 years. During this time he began the process of switching his research emphasis to dream content, the area for which he is best known. Other universities he taught at were Syracuse University (1957–59), the University of Miami (1959–60), and Catholic University in Nigmegen, Netherlands (as a Fulbright scholar in 1960-61). From 1961 to 1965, Hall studied at his Institute of Dream Research in Miami and established the similarity in dream content throughout the night by studying dreams collected in the dream laboratory. He and Robert Van de Castle, during this time, developed a comprehensive coding system that revolutionized the objective study of dream content. In his empirical work, he showed that dreams between people across the world are more similar than they are different.

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