Collected Papers in Psychology brings together the pioneering work of Edward Chace Tolman, a leading figure in 20th-century psychology. This anthology not only commemorates Tolman's remarkable career at the University of California but also offers a profound exploration of his evolving theoretical framework. With contributions spanning over three decades, these papers document the development of Tolman's systematic purposive behaviorism, a groundbreaking approach that integrates experimental rigor with dynamic theoretical constructs. This collection provides invaluable insights into Tolman's innovative use of intervening variables, his integration of diverse psychological schools of thought, and his commitment to studying behavior as a complex, multifaceted phenomenon. Tolman's work transcends mere academic inquiry, reflecting his wit, creativity, and humanistic approach to understanding psychology. Known as a "rat psychologist" for his experimental use of animals, Tolman's research extended far beyond the laboratory, influencing theories of learning, motivation, and cognition. This collection captures his unique ability to balance empirical data with abstract theorizing, presenting readers with a "progress report" on the expansion of psychological knowledge. From his seminal concept of sign-gestalt to his emphasis on cognitive maps and latent learning, these papers highlight Tolman's enduring legacy as a thinker who bridged behaviorism, Gestalt psychology, and Freudian concepts to create a unified and influential psychological system. This title is part of UC Press's Voices Revived program, which commemorates University of California Press's mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1951.