Clinical psychology is an integration of science, theory and clinical knowledge for the purpose of understanding, preventing, and relieving psychologically-based distress or dysfunction and to promote subjective well-being and personal development. Central to its practice are psychological assessment and psychotherapy, although clinical psychologists also engage in research, teaching, consultation, forensic testimony, and program development and administration. In many countries, clinical psychology is a regulated mental health profession.

The field is often considered to have begun in 1896 with the opening of the first psychological clinic at the University of Pennsylvania by Lightner Witmer. In the first half of the 20th century, clinical psychology was focused on psychological assessment, with little attention given to treatment. This changed after the 1940s when World War II resulted in the need for a large increase in the number of trained clinicians. Since that time, two main educational models have developed—the Ph.D. scientist–practitioner model (requiring a doctoral dissertation and therefore research as well as clinical expertise); and the Psy.D. practitioner–scholar model.

Amanda Green (born 1965) is an American singer and songwriter.

Born in New York City, Green was raised on the Upper West Side with brother Adam by parents Phyllis Newman and Adolph Green. From an early age she was exposed to major talents of Broadway musical theatre, including Leonard Bernstein, Jule Styne, and Cy Coleman, all of whom were regular guests in the household. At the age of nine, she starred as Maria in her summer camp's production of West Side Story, and decided to focus on performing.

After graduating from Brown University,Green attended an actors' training program at Circle in the Square and then spent two seasons at the Williamstown Theatre Festival. She began writing songs and performing in Manhattan cabarets like Joe's Pub.

In the mid-1990s, inspired by Lyle Lovett's writing, she moved to Nashville to write country music.

In Los Angeles Green wrote the lyrics for two musicals, Once Upon a Primetime (2002) and Up the Week Without a Paddle (2000),which earned her a nomination from the Los Angeles Drama Critics Circle.