Kurt Lewin in the context of "Organizational development"

John Walter Thibaut (1917–1986) was a social psychologist, one of the last graduate students of Kurt Lewin. He spent a number of years as a professor at the University of North Carolina at Chapel Hill, and was the first editor of the Journal of Experimental Social Psychology.

Leon Festinger (8 May 1919 – 11 February 1989) was an American social psychologist who originated the theory of cognitive dissonance and social comparison theory. The rejection of the previously dominant behaviorist view of social psychology by demonstrating the inadequacy of stimulus-response conditioning accounts of human behavior is largely attributed to his theories and research. Festinger is also credited with advancing the use of laboratory experimentation in social psychology, although he simultaneously stressed the importance of studying real-life situations, a principle he practiced when personally infiltrating a doomsday cult. He is also known in social network theory for the proximity effect (or propinquity).

Festinger studied psychology under Kurt Lewin, an important figure in modern social psychology, at the University of Iowa, graduating in 1941; however, he did not develop an interest in social psychology until after joining the faculty at Lewin's Research Center for Group Dynamics at the Massachusetts Institute of Technology in 1945. Despite his preeminence in social psychology, Festinger turned to visual perception research in 1964 and then archaeology, history, and the human evolutionary sciences in 1979 until his death in 1989. Following B. F. Skinner, Jean Piaget, Sigmund Freud, and Albert Bandura, Festinger was the fifth most cited psychologist of the 20th century.

Carl Stumpf (German: [ʃtʊmpf]; 21 April 1848 – 25 December 1936) was a German philosopher, psychologist and musicologist. He is noted for founding the Berlin School of experimental psychology.

He studied with Franz Brentano at the University of Würzburg before receiving his doctorate at the University of Göttingen in 1868. He also tutored the modernist literature writer Robert Musil at the University of Berlin, and worked with Hermann Lotze, who is famous for his work in perception, at Göttingen. Stumpf is known for his work on the psychology of tones. He had an important influence on his students Wolfgang Köhler and Kurt Koffka who were instrumental in the founding of Gestalt psychology as well as Kurt Lewin, who was also a part of the Gestalt group and was key in the establishment of experimental social psychology in America.

In psychology, avoidance coping is a coping mechanism and form of experiential avoidance. It is characterized by a person's efforts, conscious or unconscious, to avoid dealing with a stressor in order to protect oneself from the difficulties the stressor presents. Avoidance coping can lead to substance abuse, social withdrawal, and other forms of escapism. High levels of avoidance behaviors may lead to a diagnosis of avoidant personality disorder, though not everyone who displays such behaviors meets the definition of having this disorder. Avoidance coping is also a symptom of post-traumatic stress disorder and related to symptoms of depression and anxiety. Additionally, avoidance coping is part of the approach-avoidance conflict theory introduced by psychologist Kurt Lewin.

Literature on coping often classifies coping strategies into two broad categories: approach/active coping and avoidance/passive coping. Approach coping includes behaviors that attempt to reduce stress by alleviating the problem directly, and avoidance coping includes behaviors that reduce stress by distancing oneself from the problem. Traditionally, approach coping has been seen as the healthiest and most beneficial way to reduce stress, while avoidance coping has been associated with negative personality traits, potentially harmful activities, and generally poorer outcomes. However, avoidance coping can reduce stress when nothing can be done to address the stressor.