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Profiles of Major Thinkers in Psychology A - L

Learn more about some of the most famous thinkers in psychology in these profiles covering each individual's life, career, theories and contributions.

Albert Bandura Biography
Albert Bandura is best known for his famous "Bobo Doll" experiment, but is also noted for his social learning theory and concept of self-efficacy. Learn more about his life, career and theories in this biography.

Alfred Adler
Alfred Adler was the found of Individual Psychology and is often considered one of the most important figures in psychology history. Learn more about his life and work in this brief biography.

Alfred Binet Biography
Alfred Binet is best-known for his development of the first intelligence test. Learn more about the life, work and theories of psychologist Alfred Binet.

Anna Freud Biography
Anna Freud was influenced by her father's psychoanalytic theories, but her own contributions to ego psychology and child psychoanalysis made her an important theorist in her own right. Learn more about her life, career, and contributions to psychology in this biography of Anna Freud.

Carl Jung Biography
Learn more about the life and career of Carl Jung. Read about his major theories and his contributions to the field of psychology.

Erik Erikson Biography
Erik Erikson's stage theory of psychosocial development contributed to our understanding of personality development throughout the lifespan. Learn more about his life, career, and how early experiences led to his interest in identity in this Erik Erikson biography.

G. Stanley Hall Biography
G. Stanley Hall was the first president of the American Psychological Association and had an enormous influence on the development of early psychology. Learn more about the life, work and theories of G. Stanley Hall.

Gordon Allport Biography
Gordon Allport was one of the founding figures of personality psychology. Learn more about the early life, theory and contributions of psychologist Gordon Allport.

Hugo Mnsterberg Biography
Hugo Munsterberg was a German psychologist who is known for his contributions to applied psychology. Learn more about Hugo Munsterberg's life, career and theories in this brief biography.

James McKeen Cattell Biography
James McKeen Cattell played an essential role in establishing psychology as a legitimate science. Learn more about the life and contributions of James McKeen Cattell.

John Bowlby Biography
John Bowlby was a British psychologist perhaps best known for developing attachment theory. Learn more about his early life, career, theories and influence on psychology.

John Dewey Biography (1859-1952)
John Dewey was an American psychologist, philosopher, writer and educational theorist. Learn more about his life and influence on fields including psychology and education.

Karen Horney Biography
Karen Horney made significant contributions to psychoanalysis, personality theory, and feminine psychology. Learn more about Karen Horney's life, career, and contributions to psychology.

Kurt Lewin Biography
Kurt Lewin is often called the father of modern social psychology. Learn more about his pioneering work as well as his life, career, and contributions to psychology.

Leon Festinger Biography (1919-1989)
Leon Festinger was a social psychologist perhaps best-known for his theory of cognitive dissonance. Learn more about the life, work and theories of Leon Festinger.

Mary Ainsworth Biography
Learn more about developmental psychologist Mary Ainsworth in this brief biography of her life, career and contributions to psychology.

Mary Whiton Calkins Biography
Mary Whiton Calkins is probably best-known as the first woman president of the American Psychological Association, but she made many more contributions to the field as well. Learn more about the life, career, and contributions of Mary Whiton Calkins.

Melanie Klein Biography
Melanie Klein was an Austrian psychoanalyst best known for creating the therapeutic technique known as play therapy. Learn more about her life, career, and theory in this brief biography of Melanie Klein.

Mihaly Csikszentmihalyi Biography
Mihaly Csikszentmihalyi is a positive psychologist best known for his theory of flow. Learn more about his life, theories and contributions to psychology in this biography of Mihaly Csikszentmihalyi.

Raymond Cattell Biography (1905-1998)
Raymond Cattell was a pioneering psychologist who is perhaps best known for his use of multivariate analysis and his 16-factor personality model. Learn more about his life, career and contributions to psychology.

Sigmund Freud Biography
Time Magazine featured Sigmund Freud as one of their 100 most important people of the 20th century. Learn more about the life, career, and contributions of Sigmund Freud.

Solomon Asch Biography
Solomon Asch was a pioneering social psychologist famous for his conformity experiments that demonstrated the power of social pressure. Learn more about the life, work and influence of Solomon Asch.

William James Biography
William James is often referred to as the father of American psychology. Learn more about his life, career and influence on psychology.

Hans Eysenck (1916 -1997)
Hans Eyesenck was a very prolific psychologist, publishing more than 75 books and 1600 journal articles. He was also a very controversial figure, and his outspoken views of subjects ranging from psychotherapy to intelligence made him subject of criticism. Learn more about Eysenck's life and contributions to psychology.

Erich Fromm (1900-1980)
Erich Fromm was one of the eminent psychoanalysts of the 20th century. Learn more about his life and contributions to psychology in this brief biography.

Clark Hull Biography (1884-1952)
Clark Hull was a major behaviorist who developed the drive reduction theory of learning. While early illness interrupted his eduction, Hull managed to become one of the most prominent thinking in American psychology.

David Kolb Biography
David Kolb is a psychologist and educational theorist known for his theories of experiential learning and learning styles.

Howard Gardner Biography
Howard Gardner is an American developmental psychologist who is well-known for his theory of multiple intelligences.

Harry Harlow Biography (1905-1981)
Harry Harlow was an American psychologist best known for his research on social isolation and maternal deprivation. Learn more about his life and legacy.

Albert Ellis Biography
Albert Ellis helped found cognitive behavioral therapy and known for his therapeutic approach known as REBT. Learn more about his life and legacy.

An Interview With Dr. Debbie Joffe Ellis
Albert Ellis was one of psychology's most eminent thinkers. His wife, Dr. Debbie Joffe Ellis, shares some of her favorite memories of the late Dr. Ellis.

Dr. Debbie Joffe Ellis Talks About REBT
Dr. Debbie Joffe Ellis shares some special memories of her husband, the eminent Dr. Albert Ellis. Learn more about Ellis and REBT in our exclusive interview.

George Kelly Biography
George Kelly was an important psychologists best known for his personal construct theory. Learn more about his life and contributions to psychology.

Elizabeth Loftus Biography
Elizabeth Loftus is an influential contemporary psychologist and one of the leading experts on human memory. Learn more about her life and contributions to psychology.

Sandra Bem Biography
Sandra Bem was a pioneering feminist psychologist perhaps best known for her gender schema theory and her research on socially-constructed gender roles.

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