American Psychological Association in the context of "Scientist–practitioner model"

According to the APA Dictionary of Psychology, a feeling is "a self-contained phenomenal experience"; feelings are "subjective, evaluative, and independent of the sensations, thoughts, or images evoking them". The term feeling is closely related to, but not the same as, emotion. Feeling may, for instance, refer to the conscious subjective experience of emotions. The study of subjective experiences is called phenomenology. Psychotherapy generally involves a therapist helping a client understand, articulate, and learn to effectively regulate the client's own feelings, and ultimately to take responsibility for the client's experience of the world. Feelings are sometimes held to be characteristic of embodied consciousness.

The English noun feelings may generally refer to any degree of subjectivity in perception or sensation. However, feelings often refer to an individual sense of well-being (perhaps of wholeness, safety, or being loved). Feelings have a semantic field extending from the individual and spiritual to the social and political. The word feeling may refer to any of a number of psychological characteristics of experience, or even to reflect the entire inner life of the individual (see mood). As self-contained phenomenal experiences, evoked by sensations and perceptions, feelings can strongly influence the character of a person's subjective reality. Feelings can sometimes harbor bias or otherwise distort veridical perception, in particular through projection, wishful thinking, among many other such effects.

Sexual orientation is an enduring personal pattern of romantic attraction or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one gender. Patterns are generally categorized under heterosexuality, homosexuality, and bisexuality, while asexuality (experiencing no sexual attraction to others) is sometimes identified as the fourth category.

These categories are aspects of the more nuanced nature of sexual identity and terminology. For example, people may use other labels, such as pansexual or polysexual, or none at all. According to the American Psychological Association, sexual orientation "also refers to a person's sense of identity based on those attractions, related behaviors, and membership in a community of others who share those attractions". Androphilia and gynephilia are terms used in behavioral science to describe sexual orientation as an alternative to a gender binary conceptualization. Androphilia describes sexual attraction to masculinity; gynephilia describes the sexual attraction to femininity. The term sexual preference largely overlaps with sexual orientation, but is generally distinguished in psychological research. A person who identifies as bisexual, for example, may sexually prefer one sex over the other. Sexual preference may also suggest a degree of voluntary choice, whereas sexual orientation is not a choice.

Ellen Patricia Saumer Berscheid (October 11, 1936 – May 22, 2025) was an American social psychologist who was a Regents professor at the University of Minnesota, where she earlier had earned her PhD in 1965. Berscheid conducted research on interpersonal relationships, emotions and moods, and social cognition. Berscheid wrote books, articles and other publications to contribute to the field of Social Psychology. She was involved in controversy surrounding the funding for her research on why people fall in love. In addition to her position at the University of Minnesota as a Psychology and Business professor, she also held a position at Pillsbury. She received awards for her contributions to social psychology, including The Presidential Citation and the Distinguished Scientific Contribution Award from the American Psychological Association.

Berscheid died on May 22, 2025, at the age of 88.

Carl Ransom Rogers (January 8, 1902 – February 4, 1987) was an American psychologist who was one of the founders of humanistic psychology and was known especially for his person-centered psychotherapy. Rogers is widely considered one of the founding fathers of psychotherapy research and was honored for his research with the Award for Distinguished Scientific Contributions by the American Psychological Association (APA) in 1956.

The person-centered approach, Rogers's approach to understanding personality and human relationships, found wide application in various domains, such as psychotherapy and counseling (client-centered therapy), education (student-centered learning), organizations, and other group settings. For his professional work he received the Award for Distinguished Professional Contributions to Psychology from the APA in 1972. In a study by Steven J. Haggbloom and colleagues using six criteria such as citations and recognition, Rogers was found to be the sixth most eminent psychologist of the 20th century and second, among clinical psychologists, only to Sigmund Freud. Based on a 1982 survey of 422 respondents of U.S. and Canadian psychologists, he was considered the most influential psychotherapist in history (Freud ranked third).

Positive psychology is the scientific study of conditions and processes that contribute to positive psychological states (e.g., contentment, joy), well-being, positive relationships, and positive institutions.

Positive psychology began as a new domain of psychology in 1998 when Martin Seligman chose it as the theme for his term as president of the American Psychological Association. It is a reaction against past practices that tended to focus on mental illness and emphasized maladaptive behavior and negative thinking. It builds on the humanistic movement of Abraham Maslow and Carl Rogers, which encourages an emphasis on happiness, well-being, and purpose.

Granville Stanley Hall (February 1, 1844 – April 24, 1924) was an American psychologist and educator who earned the first doctorate in psychology awarded in the United States of America at Harvard University in the nineteenth century. His interests focused on human life span development and evolutionary theory. Hall was the first president of the American Psychological Association and the first president of Clark University. A 2002 survey by Review of General Psychology ranked Hall as the 72nd most cited psychologist of the 20th century, in a tie with Lewis Terman.

Edward Lee Thorndike ((1874-08-31)August 31, 1874 – (1949-08-09)August 9, 1949) was an American psychologist who spent nearly his entire career at Teachers College, Columbia University. His work on comparative psychology and the learning process led to his "theory of connectionism" and helped lay the scientific foundation for educational psychology. He also worked on solving industrial problems, such as employee exams and testing.

Thorndike was a member of the board of the Psychological Corporation and served as president of the American Psychological Association in 1912. A Review of General Psychology survey, published in 2002, ranked Thorndike as the ninth-most cited psychologist of the 20th century. Edward Thorndike had a powerful impact on reinforcement theory and behavior analysis, providing the basic framework for empirical laws in behavior psychology with his law of effect. Through his contributions to the behavioral psychology field came his major impacts on education, where the law of effect has great influence in the classroom.