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Rational Emotive Behavior Therapy

Rational Emotive Behavior Therapy (REBT) is a cognitive-behavioral psychotherapeutic school that posits the root of psychological distress lies not in events themselves but in individuals’ irrational beliefs about those events. Developed by Albert Ellis in the 1950s, this approach aims to help individuals overcome emotional and behavioral problems by cultivating a more rational, flexible, and realistic philosophy of life.


REBT is based on the assumption that human beings are born with the potential for both rational (logical, functional) and irrational (illogical, dysfunctional) thinking. According to the therapy, emotional disturbances and self-defeating behaviors do not arise directly from adverse events (A – Activating Event). Instead, they result from rigid, absolutist, and unrealistic beliefs (B – Beliefs) about those events, which lead to unhealthy emotional and behavioral consequences (C – Consequences). The primary goal of REBT is to help individuals recognize these irrational beliefs, challenge them through discussion (D – Disputing), refute them, and replace them with more flexible, logical, and functional new beliefs (E – Effective New Philosophy). This process is grounded in the principle that thoughts, emotions, and behaviors significantly influence one another and must be addressed through a holistic approach.

Historical Development

REBT was developed by clinical psychologist Albert Ellis (1913–2007) as a result of his dissatisfaction with the psychoanalytic therapy he practiced at the time. Ellis criticized psychoanalysis for its passive, inefficient, and prolonged structure and sought a more active, directive, and philosophically grounded approach.

Philosophical Influences

In formulating his theory, Ellis was heavily influenced by ancient and modern philosophy. In particular, the Stoic philosopher Epictetus’s assertion that “It is not events that disturb people, but their views about those events” became the foundational philosophy of REBT. In addition, the ideas of philosophers such as Baruch Spinoza, Immanuel Kant, and Bertrand Russell on rationality and happiness, along with concepts like Karen Horney’s “tyranny of the shoulds” and Alfred Adler’s “inferiority complex,” significantly shaped Ellis’s theoretical framework.

Name Changes

Ellis initially named his approach “Rational Therapy” in 1956. However, he believed this name gave the misleading impression that the therapy ignored emotions. To emphasize its emotional component, he changed the name first to “Rational-Emotive Therapy,” and later, to reflect the importance of behavioral interventions, to “Rational Emotive Behavior Therapy.”

Institutionalization

To promote his approach and train therapists, Ellis founded the Institute for Rational Living in New York in 1959, which later became known as the Albert Ellis Institute.

Theoretical Approaches

REBT is based on a unique view of human nature, philosophical principles, and core concepts.

Core Philosophy and Principles

REBT rests on three fundamental philosophical principles:


  1. Responsible Hedonism: This principle asserts that individuals should pursue long-term happiness and well-being rather than immediate gratification. While it is natural for people to value their own happiness, this must be achieved without violating the rights of others or engaging in irresponsible behaviors that harm themselves in the long run.
  2. Humanism: REBT views individuals as holistic, goal-directed beings. It emphasizes that people can critique their actions or traits without labeling themselves or others as “bad” or “worthless” as a whole. At the center of this principle is “unconditional self-acceptance”; individuals must accept that they are valuable despite being fallible and imperfect.
  3. Rationality: Rationality involves using flexible, logical, and scientific thinking to achieve goals without rejecting emotions. REBT teaches individuals more effective and functional ways of thinking that help them reach their life objectives.

View of Human Nature

According to REBT, human beings are shaped by a complex interaction of biological and environmental factors. People possess both the potential for self-actualization and happiness, as well as a tendency toward self-defeating and faulty thinking. Psychological distress arises from rigid and absolutist beliefs individuals hold about events. However, individuals also have the capacity to recognize these irrational beliefs and replace them with more rational ones.

Core Concepts

ABC Personality Model

This model forms the foundation of REBT and explains how psychological disturbances arise.


  • A (Activating Event): An event, situation, or another person’s behavior that the individual encounters. This can be real or imagined.
  • B (Beliefs): The individual’s thoughts, interpretations, and evaluations about event A. These beliefs can be rational or irrational.
  • C (Consequences): The emotional and behavioral responses that follow event A. According to REBT, C is not directly caused by A but by B. That is, the emotion experienced in response to an event—such as depression, anxiety, or anger—stems not from the event itself but from the belief system about it.
  • D (Disputing): The therapeutic stage in which irrational beliefs (B) are challenged and questioned. This involves logical, empirical, and functional inquiry.
  • E (Effective New Philosophy): The new, effective, flexible, and rational beliefs that emerge after successfully disputing irrational beliefs, along with the resulting healthy emotional and behavioral outcomes.

Rational and Irrational Beliefs

REBT distinguishes between two fundamental types of beliefs.


  • Rational Beliefs: These are flexible, logical, and grounded in reality. They are typically expressed as preferences, desires, or wishes (“I would prefer it if...”, “I would like it if...”). These beliefs help individuals achieve their goals and lead to healthy negative emotions such as disappointment, sadness, or concern.
  • Irrational Beliefs: These are rigid, dogmatic, illogical, and typically expressed as demands involving “musts,” “shoulds,” and absolutism. These beliefs obstruct individuals’ goals and lead to unhealthy negative emotions such as depression, anxiety, anger, shame, or guilt.

Three Core Irrational Demands (“Musts”)

Ellis identified three primary demands underlying many irrational beliefs:


    Applications and Techniques

    REBT is used to treat a wide range of psychological issues, including anxiety disorders, depression, anger problems, relationship difficulties, and eating disorders.

    Therapeutic Goals

    The primary goal of REBT is to reduce self-defeating behaviors, minimize emotional distress, and enable clients to lead a more satisfying life. This involves not only eliminating symptoms but also changing the client’s underlying philosophical outlook to enable more effective coping with future problems.

    Therapeutic Process and Roles

    Therapist’s Role

    The REBT therapist is active, directive, and educational. The therapist offers unconditional acceptance to the client while challenging irrational beliefs. Like a teacher, the therapist instructs the client in the ABC model and principles of rational thinking, assigns homework, and encourages the client to practice new skills.

    Client’s Role

    The client is an active participant in the therapeutic process. Clients are expected to take responsibility for their emotional problems, identify their irrational beliefs, and make concerted efforts—both during sessions and outside them—to change these beliefs.

    Therapeutic Techniques

    REBT integrates cognitive, emotional, and behavioral techniques to bring about change.

    Cognitive Techniques

      Emotional (Affective) Techniques

        Behavioral Techniques


          Warning: The content in this article is provided solely for general encyclopedic informational purposes. The information here should not be used for diagnosis, treatment, or medical referral. Before making any decisions regarding health, you must consult a physician or qualified healthcare professional. The author of this article and KÜRE Encyclopedia assume no responsibility for any consequences arising from the use of this information for diagnostic or therapeutic purposes.

          Author Information

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          AuthorYunus Emre YüceDecember 4, 2025 at 11:06 AM

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          Contents

          • Historical Development

            • Philosophical Influences

            • Name Changes

            • Institutionalization

          • Theoretical Approaches

            • Core Philosophy and Principles

            • View of Human Nature

            • Core Concepts

              • ABC Personality Model

              • Rational and Irrational Beliefs

              • Three Core Irrational Demands (“Musts”)

          • Applications and Techniques

            • Therapeutic Goals

            • Therapeutic Process and Roles

              • Therapist’s Role

              • Client’s Role

            • Therapeutic Techniques

              • Cognitive Techniques

              • Emotional (Affective) Techniques

              • Behavioral Techniques

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