Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Michael Boyle is an experienced financial ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Suzanne is a content marketer, writer, and ...

Evolutionary theory is the area that focuses on further development and refinement of the modern synthesis of evolution and genetics. Notable topics include the appropriate level of selection, the ...

Control theory is a branch of mathematics and engineering, which defines the conditions needed for a system to maintain a controlled output in the face of input variation. Classically developed for ...

Psychodynamic therapy is derived from psychoanalytic therapy, and both are based on the work of Sigmund Freud. Psychodynamic therapy is an in-depth form of talk therapy based on the theories and ...

Person-centered therapy, also known as Rogerian therapy or client-based therapy, employs a non-authoritative approach that allows clients to take more of a lead in sessions such that, in the process, ...