How to Change Behavior & Habits: 15 Therapy Techniques

Behavior change techniquesBehavior change is recognized by politicians, scientists, and therapists worldwide as crucial to solving individual and social problems.

The development of effective behavioral solutions to tackle chronic health conditions, mental health problems, financial difficulty, and criminal behavior has impacted fields as diverse as medicine and health, policing, and education (Hagger, Cameron, Hamilton, Hankonen, & Lintunen, 2020).

As a result, many behavioral theories have been developed that offer insight into contextual, environmental, individual, and social factors that influence intervention effects and highlight the potential to resolve problems rooted in how we behave.

This article introduces several theories behind behavioral change and techniques and worksheets valuable in changing behavior and habits.

Before you continue, we thought you might like to download our three Goal Achievement Exercises for free. These detailed, science-based exercises will help you or your clients create actionable goals and master techniques to create lasting behavior change.

How to Change Behavior and Habits

“Many problems observed in today’s society can be linked, directly or indirectly, to human behavior,” including debilitating illnesses and chronic conditions, such as obesity, cancer, sexually transmitted infections, and cardiovascular disease (Hagger et al., 2020, p. 1).

But making changes from existing unhealthy behaviors to new and positive ones is never easy.

“If I continue to do what I have always done, then I’m going to get what I’ve always got” (Forsyth & Eifert, 2016, p. 15). Unless we change how we behave, we are likely to get more of the same.

And you need commitment. Only you can “decide whether to allow the barriers to continue to stand between you and getting something different out of your life” (Forsyth & Eifert, 2016, p. 16).

But how do you change behavior and habits?

Many psychological theories identify the factors that determine behavior and inform the cognitive development of behavioral change interventions. They include the following (modified from Hagger et al., 2020):

  • Theory of planned behavior
  • Habit theory
  • Trans-theoretical model
  • Self-determination theory
  • Social cognitive theory
  • Control theory

While each theory is unique, they typically consider individual attitudes, beliefs, and environment as vital in determining behavioral change.

Habit theory

Habits can be helpful; they “permit fluent action, preserve cognitive resources for other tasks […], and ensure action is not forgotten” (Orbell & Verplanken, 2020, p. 179). As a result of repetition, habits are an essential part of being human but not always healthy or helpful.

The challenge is to find a way to disrupt the habit by removing or ignoring the trigger, inhibiting the habituated response, or replacing it with a new, healthier one (Orbell & Verplanken, 2020).

Trans-theoretical model

The trans-theoretical model was developed in the 1980s to help people reduce unhealthy behavior (e.g., smoking and drinking too much) and increase physical activity (DiClemente & Graydon, 2020).

The trans-theoretical model does not consider people to be lacking in motivation but as needing to start, stop, or change how they act, placing them on one of five stages along a journey:

  • Stage one – precontemplation
  • Stage two – contemplation
  • Stage three – preparation
  • Stage four – action
  • Stage five – maintenance

For each stage, the individual must complete a set of tasks to move on to the next one. For example, during preparation, the individual must commit to change and create a change plan. During action, the plan must be implemented – problems solved – and revised as required.

This is not necessarily a linear process but rather a cyclical process, with an individual cycling through stages (Prochaska & DiClemente, 1983).

Changing environments

While individual attitudes, beliefs, and plans are crucial, researchers increasingly recognize the importance of the environment (Marteau, Fletcher, Hollands, & Munafò, 2020).

Choice architecture or nudge interventions focus on changing cues in small-scale physical environments. For example, healthy eating can be encouraged through:

  • Reducing the size of plates and glassware (discouraging overeating and excessive drinking)
  • Placing very graphic warning labels on alcohol and food
  • Making healthy food widely available

Testing the positives and potential negatives of environmental changes involves robust laboratory and field studies to estimate effect sizes (Marteau et al., 2020).

There is no one-size-fits-all approach to change. Individuals, environments, and socio-economic conditions vary across countries and political ideologies, and we should apply theories accordingly.

Setting Achievable Plans and Goals: 5 Examples

Plans for behavior changeMaking plans and setting goals are popular and proven mental health interventions for behavioral change (Epton & Armitage, 2020).

Many of us will have used them in education or work-based settings to direct attention, focus, and resources at a particular task.

While there are several popular approaches, the following two are common.

The SMART Goals Worksheet and the extended SMART+R worksheet use the acronym SMART to guide goal capture and goal setting. Goals should be:

  • Specific
  • Measurable
  • Attainable
  • Realistic
  • Time-bound

SCAMP is another valuable approach to goal definition. It focuses on five factors to ensure maximum effectiveness and motivation when working toward goals (Kremer, Moran, & Kearney, 2019):

  • Specific
  • Challenging and controllable
  • Attainable
  • Measurable and multiple
  • Personal

Goal-setting theory differentiates between behavior (such as eating more healthily, getting more exercise, and adopting policies) and outcome goals (including building a community center, rolling out training practices, or getting a new job).

Examples of goal setting across different fields include (modified from Epton & Armitage, 2020, p. 556):

  1. Social inequality
    By 2030, progressively achieve and sustain income growth of the bottom 40% of the population at a higher rate than the national average.
  2. Fitness
    Race under 40 minutes in a 10 km road race by September.
  3. Workplace
    Use the end-of-year review process as an opportunity to set attainable yet stretching goals.
  4. Sport
    Last year’s Olympics silver medalist says her next heptathlon goal will be to break the 7,000-point barrier.
  5. Environment
    To reduce absolute carbon emissions by 35% by 2025/2026.

Download 3 Free Goals Exercises (PDF)

These detailed, science-based exercises will help you or your clients create actionable goals and master techniques for lasting behavior change.

Approaching Change: 4 Helpful Interventions

Habits are powerful because they turn every small decision – Should I have milk in my coffee? – into a non-decision, freeing up resources. We don’t always create good habits such as eating well; instead, we often form unhealthy ones, such as smoking or drinking too much (Orbell & Verplanken, 2020).

It is possible to “ensure that new desired behaviors will be enacted consistently and not forgotten” (create good habits) and “avoid a habituated action” (undo bad habits; Orbell & Verplanken, 2020, p. 183–184.)

Creating good habits

While goals are crucial to getting things done, sustained change often requires a new set of habits (Clear, 2018).

To turn behavior into a habit, it must be (Clear, 2018):

  • Obvious
  • Attractive
  • Easy
  • Satisfying

Try out the Creating Good Habits worksheet to put in place new positive changes in your life (modified from Clear, 2018).

Undoing Bad Habits

Stopping harmful, negative, or unhelpful habits typically involves preventing their activation in memory or the enactment of the habit response (Orbell & Verplanken, 2020).

The Undoing Bad Habits worksheet aims to break bad habits by making them invisible, unattractive, difficult, and unsatisfying.

  • How could I make it less visible?
  • How could I make it more difficult?
  • How could I make it more unsatisfying?

Motivation to change

Motivation is a key factor in initiating and perpetuating change and is a factor in overcoming both resistance and apathy (Ryan & Deci, 2018).

The Advantages and Disadvantages of Changing worksheet is a simple yet powerful way to explore the advantages and disadvantages of making a change.

Consider the change. Is it the right thing to do? If it is, your answers should motivate you to plan the changes you wish to make in your life.

Resilience and change

Change is often neither easy nor straightforward. Resilience helps you pick yourself up when things go wrong and start again where you left off.

Carole Pemberton (2015) suggests considering the four Ss when building resilience, equally valid for making changes. Ask yourself:

  • What skills do I possess?
  • What supports do I have (including family, friends, colleagues)?
  • What strategies can I adopt?
  • What sagacity (wisdom and insight) could be helpful?

Use the four Ss for resilience and change worksheet to identify the psychological capital you have available to support you along your change journey.

Learn from previous successful transformations and gain confidence in your abilities to change.

3 Techniques & Exercises for Therapy Sessions

Behavior change techniquesThere are many tools, techniques, and exercises available that can help overcome problems and facilitate change.

We have listed four below that are valuable for the therapeutic alliance and change outcomes.

Managing resistance to change

There are many reasons a client may resist change. The following techniques can help therapists ensure the therapeutic process is not damaged (Clay, 2017):

  • Remain aware of your emotional and physical state and try to stay calm.
  • Validate what the client is saying and display empathy.
  • Reframe resistance by encouraging your client to explore and explain how they are feeling.
  • Remember the bigger picture and how you can help them change by taking on the client’s pain.

Miracle question

“The miracle question invites people to imagine a future where a solution to their problem has been found and it no longer dominates their lives” (Rogers, Whitaker, Edmondson, & Peach, 2020, p. 247).

Ask the client to imagine falling asleep one night and awakening the next day, and the problems they have been talking about have disappeared.

What would it look like? How would they first see a difference? How would they feel?

The above ‘ask’ can be modified slightly to imagine what it would be like if the change they wished for happened.

If–then plans

Implementation or if–then plans specify what to do should a particular situation (expected or unexpected) arise (Rhodes, Grant, & de Bruijn, 2020).

Work with the client to identify as many as possible critical situations or cues that might occur and the appropriate behavior to perform.

It may be helpful to write these out during or after the session and work through and practice them.

Eliciting Behavior Change: 12 Questions to Ask

Motivational interviewing “is designed to find a constructive way through the challenges that often arise when a helper ventures into someone else’s motivation for change” (Miller & Rollnick, 2002, p. 4).

Ultimately, motivational interviewing is about clients talking themselves into change based on their values and interests.

DARN is a helpful acronym for generating questions to encourage change talk and can help invite change to happen.

The following worksheets and sample questions will help (modified from Miller & Rollnick, 2002):

  • Desire questions explore the client’s desire for change and often include words such as want, wish, and like. For example:

What changes do you hope these sessions will bring?
How do you want your life to be different in a year’s time?
How would you like things to change?

  • Ability questions ask about what the client can do or what they could do, without expecting them to commit. They prompt the client to consider what change is possible. For example:

If you decided to get fit, how could you do it?
What aspects of your life do you think you might be able to change?
How likely are you to be able to make that change?

  • Reasons questions prompt if–then thinking. These questions help generate good reasons to change, even if the client is not yet ready to do so. For example:

Why would you want to change your diet?
What would make it worthwhile to make that change?
What are the three best reasons for starting a new job?

  • Need questions express “an urgency for change without necessarily giving particular reasons” (Miller & Rollnick, 2002, p. 173). For example:

What needs to happen?
How important is this change for you?
What do you think has to change in your life?

4 Questionnaires to Measure Behavioral Changes

Social problemsBehavioral change can be attempted at many levels within communities, groups, and individuals.

Measures and assessments provide a means to track the success of change intervention programs and increase the likelihood that the person will perform the behavior (Godin et al., 2010):

  • Behavioral Risk Surveillance System (BRFSS)
    BRFSS is part of the Centers for Disease Control and Prevention and provides mental health questionnaires in multiple languages for tracking health-related behaviors.
  • Advance Care Planning Survey
    This survey assesses process measures that affect behavioral change, such as knowledge, contemplation, self-efficacy, and readiness (Sudore et al., 2013).
  • Science of Behavior Change
    This website offers several measures for assessing behavior and behavioral change, including:

    • Behavior Rating Inventory of Executive Function – assesses self-reported behaviors associated with the executive function.
    • BIS/BAS Scale – measures the motivation to approach goal-oriented outcomes.

2 Activities for Group Settings

While the following cognitive development activities can be performed individually, they are incredibly powerful in group sessions.

Powerful group change questions

Change is not easy. Before we are motivated to make the change, we must first dare to dream how that change may look.

These Powerful Change Questions encourage reflection of the bigger picture to help the client consider what they really want. The questions also are helpful inputs to the GROW coaching model (modified from Whitmore, 2017).

Take time to reflect on the questions and your answers. What do they tell you about what you really want to do next in your life?

Nudge interventions in groups

A nudge “is any aspect of the choice architecture that alters people’s behavior in a predictable way without forbidding any options or significantly changing their economic incentives” (Thaler & Sunstein, 2021, p. 8).

A group environment lends itself to exploring, identifying, and discussing nudge interventions and their effect on individuals and the community, such as:

  • Provision of information
    Health warnings on cigarettes and calorie counts on menus to encourage a healthy lifestyle.
  • Changes to the environment
    More stairs and fewer elevators to boost exercise.
  • Use of norms
    Supplying information on what others are doing socially to facilitate positive behavior.

Each intervention has the potential to impact behavior positively without eliminating or restricting choice or introducing financial disincentives (Thaler & Sunstein, 2021)

Use the Group Nudge Intervention worksheet in a group setting to explore how nudge techniques can be more successful than attempting to enforce behavioral change.

17 Tools To Increase Motivation and Goal Achievement

These 17 Motivation & Goal Achievement Exercises [PDF] contain all you need to help others set meaningful goals, increase self-drive, and experience greater accomplishment and life satisfaction.

Created by Experts. 100% Science-based.

Helpful Resources From

We have many resources to help support therapists and clients on the change journey.

Free resources include:

  • WDEP Questions
    This helpful list of questions encourages the client to reflect on what they want, what they are doing, and what is working (or not).
  • Looking back
    It is easy for clients to lose sight of how things used to be. It can be helpful to remind them what things were like before and how things could be again.
  • Looking forward
    Change talk can be encouraged by imagining how the future will differ from the past if change takes place.
  • Querying extremes
    This worksheet captures what could happen if no action is taken or change occurs; it is particularly useful when the client appears to lack the desire to change.

More extensive versions of the following tools are available with a subscription to the Positive Psychology Toolkit©, but they are described briefly below:

  • Habit tracker

Self-tracking plays an important role in the development of habits.

As you identify the habits you wish to track, ask yourself the following questions:

    • Can it be done regularly (every day, if possible)?
    • Does it push my abilities while still being manageable?
    • Will it improve my physical health, mental health, finances, or relationships?
    • Does it encourage play and creativity?

As you repeat each habit, the habit tracker provides immediate feedback and confirmation you are on the right track.

  • Self-Contract

Self-contracts are a valuable way to promote healthy behavioral change. When people commit to a certain behavior, they are adhering to that commitment.

Use this contract with individuals and groups who are ready to think about acting on a goal, plan, or decision.

If you’re looking for more science-based ways to help others reach their goals, check out this collection of 17 validated motivation and goal-achievement tools for practitioners. Use them to help others turn their dreams into reality by applying the latest science-based behavioral change techniques.

A Take-Home Message

Effective behavioral solutions are crucial in managing chronic physical and mental health problems and the ongoing challenges in society from financial difficulty and criminal behavior.

Making changes at a personal or a community level is not easy. As a result, many behavioral theories have arisen in recent decades to understand the influences on the effectiveness of interventions and how to encourage their uptake.

New positive habits can be implemented and existing unhealthy ones disrupted to encourage behavior in line with overall goals. Environmental change can also be incredibly powerful, making positive behavior easier and promoting wellbeing.

Planning and goal setting are valuable tools for increasing motivation and positive feelings regarding the potential to reach wished-for outcomes while tracking progress.

As a therapist, it is essential to work with clients to understand what they wish to achieve, whether significant outcomes or smaller habitual, but equally important, behavioral changes, as they encourage a happier, more fulfilling life.

We hope you enjoyed reading this article. Don’t forget to download our three Goal Achievement Exercises for free.


  • Clay, R. A. (2017). Coping with challenging clients. Monitor on Psychology, 48(7), 55. Retrieved November 28, 2021, from
  • Clear, J. (2018). Atomic habits. Random House.
  • DiClemente, C. C., & Graydon, M. M. (2020). Changing behavior using the transtheoretical model. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 136–149). Cambridge University Press.
  • Epton, T., & Armitage, C. J. (2020). Goal setting interventions. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 554–571). Cambridge University Press.
  • Forsyth, J. P., & Eifert, G. H. (2016). The mindfulness & acceptance workbook for anxiety: A guide to breaking free from anxiety, phobias & worry using acceptance & commitment therapy. New Harbinger.
  • Godin, G., Sheeran, P., Conner, M., Delage, G., Germain, M., Bélanger-Gravel, A., & Naccache, H. (2010). Which survey questions change behavior? Randomized controlled trial of mere measurement interventions. Health Psychology, 29(6), 636–644
  • Hagger, M. S., Cameron, L. D., Hamilton, K., Hankonen, N., & Lintunen, T. (2020). The handbook of behavior change. Cambridge University Press.
  • Kremer, J., Moran, A. P., & Kearney, C. J. (2019). Pure sport: Practical sport psychology. Routledge.
  • Marteau, T. M., Fletcher, P. C., Hollands, G. J., & Munafò, M. R. (2020). Changing behavior by changing environments. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 193–207). Cambridge University Press.
  • Miller, W. R., & Rollnick, S. (2002). Motivational interviewing: Preparing people for change. Guilford Press.
  • Orbell, S., & Verplanken, B. (2020). Changing behavior using habit theory. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 178–192). Cambridge University Press.
  • Pemberton, C. (2015). Resilience: A practical guide for coaches. Open University Press.
  • Prochaska, J. O. & DiClemente, C.C. (1983). Stages and processes of self-change of smoking, toward an integrative model of change. Journal of Consulting and Clinical Psychology, 51, 390-395.
  • Rhodes, R. E., Grant, S., & de Bruijn, G. (2020). Planning and implementation intention interventions. In M. S. Hagger, L. D. Cameron, K. Hamilton, N. Hankonen, & T. Lintunen (Eds.), The handbook of behavior change (pp. 572–585). Cambridge University Press.
  • Rogers, M., Whitaker, D., Edmondson, D., & Peach, D. (2020). Developing skills & knowledge for social work practice. SAGE.
  • Ryan, R. M., & Deci, E. L. (2018). Self-determination theory: Basic psychological needs in motivation, development, and wellness. Guilford Press.
  • Sudore, R. L., Stewart, A. L., Knight, S. J., McMahan, R. D., Feuz, M., Miao, Y., & Barnes, D. E. (2013). Development and validation of a questionnaire to detect behavior change in multiple advance care planning behaviors. PLoS ONE, 8(9).
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  • Whitmore, J. (2017). Coaching for performance: The principles and practice of coaching and leadership. Nicholas Brealey.


What our readers think

  1. Ellen Van Oosten

    Thank you for this well-written summary of theories, models and exercises! I appreciate the work that went into researching and writing this. It’s helpful for both researchers and practitioners alike. There were a few theories that were missing and I would love the author’s perspective on them. One is Intentional Change Theory (Boyatzis, 2006, 2008). For a summary of the theory, how it’s applied for behavior change in coaching and the supporting empirical literature, see Helping People Change: Coaching with Compassion for Lifelong Learning and Growth by Boyatzis, Smith and Van Oosten. ICT describes how adults learn, change and grow in ways that leads to sustained change vs. fleeting or episodic change. Another relevant theory is Immunity to Change (Lahey & Kegan, 2009). The concept is described in their book, Immunity to Change: How to overcome it and unlock the potential in yourself and your organization. Thank you again!

  2. Pauline

    An excellent, well-written, clear, and practical piece of literature. It is empowering for both the therapist and client. Look forward to implementing the above suggestions and techniques in my life and practice.

  3. Heather Dodd

    Thank you for providing details of these theories in bite sized pieces. This is very much appreciated to get a quick overview of the theory and application.

  4. Consuelo

    Great piece of material that could support and help people find a better way of changing their habits and lives.

  5. Consuelo

    Thank you!

  6. Allie

    Thank you! Very useful I plan to implement this with clients.

  7. Bindi Dhanani

    These behaviours can effect you, but the solutions can be life changing. The guide and steps are a great tool to have and fall back, plus you don’t have to start of with big changes, you can start small and work your way to achieving a more better out come. BD

  8. Morning Upgrade

    Great advice. “Effective behavioral solutions are crucial in managing chronic physical and mental health problems and the ongoing challenges in society from financial difficulty and criminal behavior.” This article is a good read. -Ryan


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