Prochaska and DiClemente's Stages of Change Model for Social Workers

Social workers help people navigate challenges ranging from community issues to deeply personal struggles, including mental illness, divorce, anger management and addiction.¹ Their work often includes helping clients change behaviors that may be harmful to themselves or others, but lasting change rarely happens all at once. Clients may not recognize that a problem exists, may feel uncertain about making changes or may be motivated one day and discouraged the next.

One of the most widely used frameworks for understanding this process is Prochaska and DiClemente's Stages of Change Model, also known as the Transtheoretical Model (TTM).² It is one of many evidence-based social work theories and practice models that help guide assessment and intervention. Developed to help clinicians assess a person's readiness for change, the model provides a practical framework for matching interventions to a client's current mindset instead of assuming that everyone is ready for the same next step.³

This article explains the Transtheoretical Model of Change that Prochaska and DiClemente developed, outlines its six stages and explores how social workers use it to support meaningful, lasting behavioral change.

What is the Transtheoretical Model of Change?

The Transtheoretical Model (TTM) is built on a simple but powerful idea: Lasting change is a process, not a single event.³ Psychologists James Prochaska and Carlo DiClemente developed the model in the late 20th century to help clinicians assess a client's readiness for change and tailor interventions accordingly.^3,4

Often described as the "wheel of change," the TTM organizes behavioral change into a series of stages.⁴ Rather than assuming that every client is equally prepared to act, the model helps clinicians identify where a person is in the process and what support may be most effective at any given point.

This framework also gives clients a practical way to understand their own progress. By presenting change as a gradual, cyclical process instead of a one-time decision or a strictly linear journey, the model can help normalize setbacks, reinforce incremental progress and encourage clients to move forward at a pace they are ready to sustain.

The Six Stages of Change in the Prochaska Model

The wheel of change developed by Prochaska and DiClemente consists of six stages that reflect a person's readiness to modify behavior.⁴ While clients may move through them sequentially, progress isn't always linear. People can remain in one stage for an extended period, move back and forth between stages or revisit earlier stages before achieving lasting change.

Precontemplation and Contemplation

The first of Prochaska and DiClemente's stages of change is Precontemplation.⁴ At this stage, clients do not recognize a problem or believe that change is necessary. As a result, they are not considering changing their behavior.

In the Contemplation stage, clients begin to recognize that change may be beneficial.⁴ They weigh the advantages and disadvantages of making a change but remain uncertain about whether to act. Although they have not yet committed, acknowledging the possibility of change is an important step forward.

Preparation and Action

During the Preparation stage, clients begin getting ready to take action. They may make small, intentional changes, such as reducing substance use, establishing healthier routines or adopting habits that support their long-term goals. According to the model, clients in this stage generally intend to take more significant action within the next month.⁴

The Action stage begins when clients make clear, observable changes to their behavior.⁴ During this period, they work to strengthen new habits and reinforce their commitment to lasting change. This phase often continues for several months as new behaviors become more established.

Maintenance and Relapse

After sustaining behavioral changes for several months, clients enter the Maintenance stage.⁴ The focus shifts from initiating change to reinforcing healthy behaviors and avoiding situations that could trigger a return to previous patterns.

The original Stages of Change theory identified Termination as the final stage, representing a point at which the previous behavior no longer poses a meaningful risk of returning.⁴ However, many people remain in Maintenance indefinitely, and more recent versions of the Transtheoretical Model include Relapse as the sixth stage.⁵ Rather than viewing relapse as failure, the model recognizes it as a common part of the change process that may require clients to revisit an earlier stage before moving forward again.

Applying the Stages of Change Theory in Social Work

One of the Transtheoretical Model's greatest strengths is its recognition that effective interventions depend on where a client is in the change process. By assessing a client's current stage, a social worker can tailor interventions accordingly as part of developing an effective treatment plan.

For example, encouragement toward immediate action may be ineffective for someone in the Precontemplation stage, who has not yet acknowledged a problem. A client in the Preparation stage, however, may benefit from practical strategies and encouragement to begin making changes.

Social workers also use evidence-based techniques such as motivational interviewing to help clients explore their goals, resolve ambivalence and build confidence as they progress from one stage to the next.⁶ By aligning interventions with a client's current mindset, the social worker can foster greater engagement and support more sustainable, long-term change.

Turn Knowledge Into Meaningful Change

By understanding evidence-based frameworks such as the Transtheoretical Model, you can provide better support for your clients as they navigate complex personal challenges. To develop the judgment to apply those frameworks in real-world situations, however, you need both rigorous study and practical experience.

The online Master of Social Work from Yeshiva University's Wurzweiler School of Social Work is designed to help you build both. Through a curriculum grounded in social justice, cultural responsiveness and human transformation, you'll strengthen your clinical reasoning while completing 1,200 hours of supervised practicum experience. You'll also engage with authentic case scenarios through The Heights, Wurzweiler's immersive online learning environment, and can tailor your studies by pursuing embedded Gerontology and Palliative Care certification or CASAC credentialing.

Deepen your expertise and prepare to make a greater impact in the lives of individuals, families and communities. An admissions outreach advisor can answer your questions about the online MSW, explain the admissions process and help you determine the path that best supports your professional goals. Schedule a conversation today.