Empirically-Derived, Personal Theory of Therapeutic Change

Cognitive Behavioral Therapy: A Framework for Change

Cognitive behavioral therapy (CBT) is a prevalent and efficacious psychotherapeutic approach that emphasizes the interrelationships among thoughts, emotions, and behaviors. Building on the fundamental ideas of cognitive behavior therapy, committing to customizing therapeutic approaches to meet the unique needs of every client is essential. Clients are more likely to feel understood and have a better therapeutic bond with their therapist when they recognize an alignment between their goals and the methods that are being used (Beck, 2020). Thus, CBT provides clients with a collaborative treatment plan that equips them with lifelong skills and practices. This methodology guarantees proactive client involvement and fosters sustained therapeutic efficacy.

The Evolution of CBT: From Behaviorism to Cognitive Restructuring

Dr. Aaron Beck, alongside other pioneers of CBT such as Drs. Joe Wolpe, Tim Beck, and Albert Ellis, led the development of this therapeutic approach in the 1960s (Herbert & Forman, 2011; Salkovskis et al., 2024). The developers departed from traditional psychotherapeutic methods by delving into innovative approaches and extensively investigating treatment techniques to validate their efficacy as integral components of the therapeutic process and mechanisms of change (Herbert & Forman, 2011; Salkovskis et al., 2024). With an emphasis on cognitive models, CBT is a second-wave therapy that separates from behavioral therapy. The fundamental idea of these theories is the interconnectedness of one’s thoughts, feelings, and behaviors. Unlike behaviorism, which primarily focused on external stimuli and responses, CBT integrates cognitive models to examine how thoughts influence emotions and behaviors. This shift allowed for the development of strategies to challenge maladaptive cognitions and modify behavior, proving effective for a range of psychological disorders, including anxiety, depression, and addiction (Barkham et al., 2021; Brettschneider et al., 2015). The core concept of cognitive behavioral therapy claims that an individual’s emotions and behaviors are influenced by their subjective interpretations of the external world, rather than being entirely influenced by the objective environment. Therefore, CBT assists clients in adopting a rational approach to viewing their perception of themselves, others, and the world. By incorporating behavioral interventions and cognitive restructuring, CBT facilitates sustainable and long-lasting psychological change (Karunarathna et al., 2025).

Therapeutic Process: Building a Foundation for Change

The contextual model framework in CBT facilitates the process of change through a combination of common elements (Cuijpers et al., 2019; Huibers & Cuijpers, 2015). At its core, the therapeutic process follows a sequence of key elements that support cognitive and behavioral transformation (Huibers & Cuijpers, 2015).

Establishing a Strong Therapeutic Alliance

Initially, a strong relationship in therapy is built between the client and the therapist through sincere communication, empathy, and trust, forming the core of the therapeutic process. Therapy addresses client expectations, and fosters hope by explaining their disorder and offering coping mechanisms like problem-solving, mindfulness, and cognitive restructuring (Cuijpers et al., 2019; Karunarathna et al., 2025; Beck, 2020). CBT empowers clients by providing explanations and tools, encouraging them to face fears and adopt healthy behaviors through behavioral interventions and cognitive restructuring (Huibers & Cuijpers, 2015; Cuijpers et al., 2019). These techniques improve cognitive flexibility, reduce negative thoughts, and promote adaptive behaviors beyond disorder-focused frameworks (Cuijpers et al., 2019). Clients often feel limited in controlling their lives and engaging in change discussions, yet therapy helps them recognize and explore positive alternatives (Salkovskis et al., 2024). Effective CBT enhances psychological adaptability, enabling clients to understand their external environment and focus on controllable aspects. Interpersonal dynamics in therapy play a crucial role in shaping daily interactions, reinforcing engagement, and fostering long-term psychological adaptability (Jahoda et al., 2009; Cuijpers et al., 2019). Vygotsky’s zone of proximal development and ecological frameworks emphasize the importance of collaborative relationships in therapy, facilitating meaningful progress through structured interventions (Jahoda et al., 2009; Salkovskis et al., 2024). By integrating cognitive restructuring and behavioral strategies, CBT empowers clients to navigate their external environments effectively, enhancing resilience and social empowerment for lasting transformation (Beck, 2020; Karunarathna et al., 2025).

Mechanisms of Change and Process in Cognitive Behavioral Therapy

Enhancing Treatment Plans and Identifying Therapeutic Goals

Salkovskis et al. (2024) emphasized that the evolution of CBT and the challenges in understanding its mechanisms of change focus on two key areas: refining treatment plans and defining therapeutic objectives. Treatment enhancement involves developing and improving structured interventions, while goal identification assesses the specific elements targeted in therapy, ranging from disorder-specific issues to broader transdiagnostic factors that address underlying mental health conditions (Harvey et al., 2004; Salkovskis et al., 2024). Transdiagnostic treatment expands the scope of therapy by addressing shared psychological processes across multiple disorders rather than treating each condition in isolation (Salkovskis et al., 2024; Cuijpers et al., 2019). By identifying and refining effective therapeutic strategies, transdiagnostic approaches improve the treatment of comorbid conditions and provide greater flexibility in addressing complex cases (Harvey et al., 2004; Beck, 2020). Understanding these mechanisms is crucial for tailoring interventions to individual client needs, ultimately leading to more personalized and effective therapeutic outcomes (Salkovskis et al., 2024; Cuijpers et al., 2019).

Cognitive Change as the Core Mechanism in CBT

Cognitive change is the primary mechanism of change in CBT (Lorenzo-Luaces et al., 2015). The change process is split into three different classifications that are beneficial methods in psychological treatment: a) universally applied therapeutic principles, b) modular interventions, and c) shared mechanisms (Sauer-Zavala, et al., 2017).

Universally Applied Therapeutic Principles in CBT

Universal therapeutic concepts are key procedures utilized in various therapeutic approaches that are considered effective for a wide range of psychological problems (Cuijpers et al., 2019; Sauer-Zavala, et al., 2017). These procedures are aimed at establishing a therapeutic bond, cultivating empathy and comprehension, enhancing self-awareness, and aiding in emotional expression and management.

Modular Interventions in CBT

These interventions involve breaking down treatment strategies into adaptable components that can be tailored to the unique needs of individual clients (Sauer-Zavala et al., 2017; Cuijpers et al., 2019). This flexibility makes modular interventions particularly beneficial for addressing complex or comorbid conditions where standardized treatment approaches may be less effective (Harvey et al., 2004; Beck, 2020). In CBT, modular interventions allow therapists to personalize therapy sessions, ensuring that treatment aligns with the client’s cognitive, emotional, and behavioral patterns (Salkovskis et al., 2024).

Shared Mechanisms Across Psychological Disorders in CBT

Common cognitive, emotional, behavioral, and interpersonal processes influence the onset, persistence, and resolution of psychological distress (Sauer-Zavala et al., 2017). By targeting these transdiagnostic mechanisms, therapists develop interventions with broad applicability, enhancing treatment efficacy across diverse populations (Harvey et al., 2004; Salkovskis et al., 2024). This approach simplifies therapeutic methodologies while maintaining effectiveness, making it a key aspect of CBT’s adaptability and success (Cuijpers et al., 2019; Beck, 2020). Moreover, by integrating these mechanisms, CBT ensures a structured yet flexible treatment model that can be customized to individual client needs, reinforcing its role as a leading evidence-based approach in psychotherapy (Salkovskis et al., 2024; Cuijpers et al., 2019).

Types of Processes in Cognitive Behavioral Therapy

Transdiagnostic Treatment: Descriptive Processes

Transdiagnostic treatment focuses on common underlying factors shared by various psychological disorders instead of specific symptoms. Two types of processes have been identified in this approach: descriptive transdiagnostic processes and mechanistic transdiagnostic processes (Cuijpers et al., 2019 Harvey et al., 2004; Salkovskis et al., 2024). Descriptive transdiagnostic processes refer to observable qualities or features that are common to different emotional diseases. Nevertheless, these mechanisms do not necessarily serve similar functions in the formation or persistence of any disorder (Harvey et al., 2004; Beck, 2020; Fairburn, 2008). For instance, both depression and generalized anxiety disorder may exhibit increased levels of anxiety, but the role or effect of anxiety may vary between these two disorders.

Transdiagnostic Treatment: Mechanistic Processes

In contrast, mechanical transdiagnostic processes are elements that contribute to the persistence or worsening of many emotional problems (Fairburn, 2008; Lorenzo-Luaces et al., 2015; Salkovskis et al., 2024). These mechanisms are foundational and may be the basis for the development of many disorders. For example, a common mechanistic process observed in various eating disorders, such as anorexia nervosa and bulimia nervosa, is an excessive preoccupation with body shape and weight (Cuijpers et al., 2019; Fairburn, 2008; Salkovskis et al., 2024). The collective emphasis on body image issues can contribute to the maintenance of these disorders. By addressing these fundamental processes, transdiagnostic interventions aim to break cycles of dysfunction and foster psychological flexibility (Salkovskis et al., 2024; Beck, 2020; Sauer-Zavala et al., 2017).

Disorder-Specific vs. Disorder-Relevant Components in Transdiagnostic Frameworks

It is important to make a distinction between ‘disorder-specific’ and ‘disorder-relevant’ components within transdiagnostic frameworks (Salkovskis et al., 2024; Beck, 2020; Sauer-Zavala et al., 2017). Disorder-specific components refer to characteristics unique to a particular disorder, while disorder-relevant components are shared across multiple conditions (Salkovskis & Forrester, 2002; Cuijpers et al., 2019; Beck, 2020). Identifying both shared and disorder-specific factors is essential for optimizing therapeutic interventions (Harvey et al., 2004; Fairburn, 2008; Lorenzo-Luaces et al., 2015). By targeting disorder-relevant processes, CBT enhances treatment effectiveness for comorbid conditions, ensuring a more holistic and individualized approach (Harvey et al., 2004; Cuijpers et al., 2019; Salkovskis et al., 2024). By integrating these mechanisms, CBT ensures a structured yet flexible treatment model that can be customized to individual client needs, reinforcing its role as a leading evidence-based approach in psychotherapy (Salkovskis et al., 2024; Cuijpers et al., 2019; Beck, 2020).

Exploring the Development and Significance of Cognitive Behavioral Therapy

Throughout the years, a wide range of strategies and procedures have been incorporated into CBT with the goal of delivering therapeutic change for a variety of mental health conditions (Salkovskis et al., 2024). The importance of transdiagnostic factors is important in the treatment of psychological disorders, suggesting that interventions do not necessarily need to be diagnosis-specific (Harvey et al., 2004). These characteristics indicated that it may not be important to tailor interventions to specific diagnoses. Although there are many different forms of therapy available, the growing use of transdiagnostic techniques suggests a move towards more universally applicable approaches. This highlights the significance of focusing on common underlying elements that are present in a variety of mental health disorders, such as cognitive biases, maladaptive thinking patterns, or difficulties with emotion regulation (Cuijpers et al., 2019; Salkovskis et al., 2024). As a result, transdiagnostic treatments provide a more effective and efficient method of therapy, which may simplify the therapeutic process and decrease the requirement for highly specialized or diagnosis-specific programs (Beck, 2020; Fairburn, 2008).

CBT includes a wide range of methods, such as exposure therapy and applied relaxation, that show both beneficial and occasionally contradictory strategies (Beck, 2020; Salkovskis et al., 2024). Additionally, despite conceptual variations from CBT, therapies including acceptance and commitment therapy and mindfulness-based cognitive therapy have demonstrated effectiveness (Salkovskis et al., 2024). The similarities in the layout of these methods and techniques are more evident when analyzed in relation to the “common elements” that various therapeutic approaches have (Collard, 2019). Despite the diverse theoretical frameworks and methodologies used in various therapies, there are similar underlying principles or strategies that emphasize the common ground among different therapeutic approaches. There are several therapies with scientific support, which raises issues about their effectiveness; nevertheless, CBT continues to be extensively researched and often is more effective better than other psychotherapies (Cuijpers et al., 2023; Salkovskis et al., 2024).

Advancing Therapeutic Effectiveness through Research and Innovation

CBT remains one of the most extensively researched psychotherapies, often demonstrating superior effectiveness compared to other treatment modalities (Cuijpers et al., 2023; Salkovskis et al., 2024). Reacher into the mechanisms of change in the evolution of CBT indicated that improvements in treatment effectiveness result in beneficial developments in CBT. As studies advance, important findings are uncovered that enhance and improve therapeutic methods and approaches by clarifying the mechanisms and rationales behind the therapeutic efficacy of CBT (Cuijpers et al., 2023; Lorenzo-Luaces et al., 2015; Cuijpers et al., 2023). In the field of CBT, new and improved interventions and techniques are created because of this never-ending cycle of research and invention (Beck, 2020; Salkovskis et al., 2024). There is still some evidence to support certain methods of change, however, these advancements were shaped by many different theories, including the radical behaviorist and genetic models of depression (Cuijpers et al., 2023; Salkovskis et al., 2024). The lack of consensus in psychological therapy research stems from challenges in identifying causal relationships, determining the timing of therapeutic change, and distinguishing between the impact of CBT-specific techniques and broader common factors such as the therapeutic alliance (Cuijpers et al., 2019; Lorenzo-Luaces et al., 2015; Salkovskis et al., 2024). While emerging evidence supports theoretical models for anxiety disorders and depression, further research is necessary to clarify how CBT fosters positive psychological change (Salkovskis et al., 2024; Cuijpers et al., 2023).

The Complexity of Cognitive Therapy for Depression

An examination of many aspects of cognitive therapy for depression revealed its intricate nature (Beck, 2020; Lorenzo-Luaces et al. 2015) These aspects encompassed cognitive change processes, cognitive change itself, and symptom change. While CBT can help with deeper cognitive change, including alterations to processes like cognitive reactivity, medication-induced changes to cognition tend to be more surface-level. Interestingly, there is a relative link in CBT between symptom relief, alliance, and adherence, highlighting how crucial treatment compliance and a positive therapist relationship are to improving cognitive behavioral therapy’s ability to reduce symptoms (Lorenzo-Luaces et al. 2015). This demonstrates the comprehensiveness of CBT as it addresses disorders influenced by various interconnected factors.

Mechanisms of Change in CBT: Unresolved Questions

Although there is substantial evidence that CBT is beneficial in situations that are both transdiagnostic and disorder-specific, little is known about the mechanisms by which these therapeutic interventions result in improvement (Salkovskis et al., 2024). There is a significant lack of agreement in the field of psychological therapy, both theoretically and experimentally, regarding the contribution of unique components, common variables, or a combination of both to the mechanisms of change (Cuijpers et al., 2019; Lorenzo-Luaces et al., 2015). This can be related to several factors, such as the emphasis placed primarily on the effectiveness of studies, the lack of statistical techniques to establish causal relationships between variables, a lack of studies determining the timing of changes and causality, and the inability to establish whether CBT-specific interventions are more effective to more general interventions such as the therapeutic relationship (Salkovskis et al., 2024). Salkovskis et al. (2024) also noted that evidence beginning to support specific theoretical hypotheses for individual anxiety disorders and depression; however, more research in general is required to fully understand how CBT promotes beneficial changes in individuals.

CBT as a Tool for Self-Therapy

A therapist using CBT encourages the client to become their own therapist. The therapist equips the client with enduring tools and routines for daily self-application. These approaches can assist individuals in managing uncomfortable situations that provoke emotional distress and lead to unhelpful automatic thoughts and behaviors (Beech, 2000). The therapist can educate their clients on different strategies to help them take charge of their thoughts and feelings, examining their cognitive biases through engaging in Socratic dialogue and challenging their core beliefs (Beck, 2020). Over time, the client will begin to question their negative views and substitute them with more realistic and adaptable ones (Cuijpers et al., 2019). Moreover, the collaborative work between the therapist and client is acknowledged but not considered the end goal in therapy (Beech, 2000). However, the therapeutic alliance is a precursor to achieving effective outcomes, aiding CBT approaches in symptom reduction. CBT emphasizes skill acquisition, enabling clients to develop self-sufficiency in managing their psychological distress. The therapeutic alliance, however, plays a critical role in achieving effective outcomes, as a strong alliance enhances client adherence and engagement in cognitive and behavioral interventions (Lorenzo-Luaces et al., 2015). By fostering autonomy and reinforcing adaptive coping mechanisms, CBT not only reduces symptoms but also promotes sustainable mental well-being.

Advancing Research on CBT’s Mechanisms

Discovering of effective interventions with increased impact not only represents advancements in the field; it also serves as a motivator for more research into the underlying mechanisms of change (Lloyd et al., 2013). This simultaneous emphasis on solutions that are both individual and organization focused highlights how thorough research is in the field of psychotherapy (Salkovskis et al., 2024). Researchers can have a better understanding of how interventions work and how to maximize their effectiveness by exploring the complex mechanisms that lead to therapeutic change at the individual and organizational levels (Cuijpers et al., 2019). In addition to improving the knowledge of therapeutic mechanisms, this integrated approach opens the door to the creation of more specialized interventions that may be used to meet the various needs of both individuals and organizations (Hofmann et al., 2012); Lloyd et al., 2013). Thus, by encouraging the collaborative connection between intervention effectiveness and mechanistic investigation, research in this area continues to progress and ultimately benefits both practitioners and clients.

ABC Model in Cognitive Behavioral Therapy

     There are three essential phases involved in implementing CBT in practice: assessment, intervention, and evaluation (Teater, 2010). In the assessment phase, therapists work in collaboration with clients to explore the ways that their thoughts, feelings, and behaviors contribute to their problems, considering factors like frequency, intensity, and duration (Beck, 2020). At this point, the A-B-C model is often used, where clients evaluate the activating event (A), their attitude or belief system about it (B), and the repercussions that showed up in their emotions or behaviors (C). Thus, by thorough evaluation employing methods such as the A-B-C model, clinicians can learn important information about the underlying cognitive and behavioral patterns of the client’s problems (Cuijpers et al., 2019; Teater, 2010). This understanding forms the basis for the development of focused intervention techniques aimed at modifying unhelpful thoughts and behaviors (Hofmann et al., 2012). The evaluation phase plays a vital role in ensuring effective therapy planning and intervention. By continuously assessing client progress and modifying techniques as needed, therapists enhance treatment efficacy and facilitate goal achievement (Lorenzo-Luaces et al., 2015). The A-B-C model, as part of the broader CBT framework, empowers clients to develop greater self-awareness and actively participate in their cognitive and emotional transformation (Salkovskis et al., 2024).

For information on interventions of CBT, see part II linked here.