The MI technique was designed to help clinicians to identify where individuals with substance abuse issues stood regarding their understanding of their substance abuse. Since the initial conception of the technique, there have been many refinements that have resulted in the technique being used for numerous other purposes.
It should be understood that the information in this article is provided for educational purposes only and should not be used by individuals who have no formal training in the assessment and treatment of mental health disorders. Only licensed mental health clinicians can assess, diagnose, and treat these disorders.
The Transtheoretical Model of Change
The aspect of Motivational Interviewing that most individuals are familiar with is the stages of change model. The original development of the MI model was designed to identify where an individual with a substance abuse issue stood regarding their perception of their need to address the problem. Many times, individuals who enter treatment for substance abuse issues do not readily accept the notion that there is something about their behavior that they need to change. Often, these individuals are forced into treatment by family, their occupation, the legal system, etc. They may not have developed the notion that their behavior is problematic for them and may believe that they are able to control their issues with alcohol or drugs in such a manner that they can continue using their substance of choice and avoid the particular issues that brought them into treatment.
Miller and Rollnick realized that in order for any intervention for any type of substance use issue to be successful, it would be important to understand how the client visualized their substance use. Individuals who demonstrated behavioral issues sufficient to qualify for a diagnosis of a substance use disorder, but who did not see the need for substance abuse treatment, would need to be approached differently than individuals who already agreed with the idea that they must change their behavior (e.g., they must stop using drugs or alcohol).
The transtheoretical model of the stages of change that was subsequently developed by Miller, Rollnick, and their associates hypothesized that individuals entering therapy did not begin at the same starting point. Thus, the initial task of the therapist is to identify where the client stands on their willingness to accept their need for change and their understanding of their issues. Once the person’s starting point is identified, it becomes a matter of adjusting treatment to fit the needs and understanding of the client. The hope in developing the transtheoretical model was to increase positive therapeutic outcomes for individuals entering treatment, decrease issues with resistance in clients with substance use disorders and other issues, and decrease dropout rates. Dropout rates in some substance use disorder treatment programs are much higher than expected when compared to dropout rates for individuals entering treatment for other issues particularly.
The Stages of Change Model
According to the model, the stages of change are:
- Stage 1: The earliest stage an individual might fall into is the Precontemplation Stage. In this stage, the person may be experiencing some negative issues associated with their substance use; however, they do not perceive these issues as potentially serious enough to motivate them to consider changing their behavior. In this stage, the client has little or no motivation to change their behavior as they do not view themselves as having a problem.
- Stage 2: This stage is termed the Contemplation Stage. In the second stage, the individual may realize that their behavior is problematic for them, but they are ambivalent about making any changes. The person may have a desire to change and may even have considered changing their behavior (e.g., quitting drinking, cutting down on their drinking, etc.) but has not invested any effort into changing their behavior.
- Stage 3: In the Preparation Stage, the individual has made a commitment to changing their behavior and accepted responsibility for doing so. Most individuals in this stage weigh the positive versus negative ramifications of their behavior and have concluded that the negative aspects outweigh any benefits they perceive it brings them. Some individuals may have attempted to develop a plan for change, but in this stage, they have not taken any formal action.
- Stage 4: In the Action Stage, the person is actively involved in changing their behavior. Any active effort to change behavior would be enough to categorize them as being in this stage. Most individuals in this stage understand that they are responsible for changing their behavior, and they often require some form of outside assistance to help them reach their goal.
- Stage 5: This stage is referred to as the Maintenance Stage. In this stage, the individual has developed some aspect of efficiency that has allowed them to change their behavior. They may still be working on change, but they have become proficient enough in order to change their behavior. As a general rule, individuals must have made changes that have been in place for a minimum of six months in order to qualify for this stage.
- Stage 6: In the Termination Stage, the person has made all of the changes that are necessary for them to face new issues and continue in a productive manner. Even though the title of this stage implies the process is over, many individuals do not actually terminate their participation in their program of change; many people in treatment for substance use disorders continue to participate in social support groups such as 12-Step groups for many years after they have been sober or abstinent. In this stage, the person has been able to make positive changes, overcome their issues, maintain new habits, and continue to improve.
The conceptualization by Miller and Rollnick is not one of a linear process with a designating starting point and a designated ending point. Individuals may enter treatment at any point along the model (e.g., at any of the stages) and may actually digress to previous stages (e.g., as a result of a relapse). The model assumes that different people start at different points in the process; some may experience setbacks and drop back, whereas others may move forward without setbacks.
The overall model is quite consistent with the experiences of mental health clinicians who treat all types of different mental health disorders, including substance abuse issues. The process of lapsing or relapsing is relatively common in individuals recovering from substance use disorders, and in some cases, relapses are accompanied by entire attitude shifts that result in these people starting over again. Recovery from a substance use disorder is rarely accomplished in a linear fashion without setbacks.
Helping the Client
According to the book Motivational Interviewing in Health Care: Helping Patients Change Behavior, when clients are resistant to change, therapists need to be directive but not forceful. In general, the Motivational Interviewing model assumes the following:
- The therapist should be directive and help the client to examine any ambivalence they have regarding change.
- The motivation to change is drawn out from the client; it is never forced on the client.
- Trying to directly persuade the client that they need to change will not resolve their ambivalence toward change; there is also a body of research evidence to suggest this is true.
- It is the client’s job to resolve their ambivalence toward change; this is not the task of the therapist.
- The therapist helps the client to examine their ambivalence and to resolve ambivalence regarding change.
- The readiness to change is not a trait but a result of an interpersonal interaction that occurs with the client and other forces (e.g., a therapist).
A therapist using MI techniques attempts to:
- Develop a therapeutic alliance with the client by discussing the client’s concerns, issues, and goals
- Directs the client by focusing on a narrow discussion of behaviors, habits, patterns, etc., that the client wants to change
- Directs the client to make a decision about amplifying the need for change, increasing their motivation to change, and prompting the realization of the importance of changing their behavior
- Assist the client to plan the steps they wish to take to make desired changes in their behavior
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Research on the Effectiveness of MI
Despite having significant face validity (meaning that the Motivational Interviewing theory appears to be valid on the surface), research on the effectiveness of MI is rather mixed. Even research by the originators of the paradigm, Miller and Rollnick, often suffer from issues with the sample of participants that are used in their studies. One often cited study was noted to have issues with selecting participants from outpatient and inpatient sources that might not have been representative of the entire array of individuals who have substance abuse issues. It should be noted that many clinical studies suffered from issues with including participants that may be suitable for the intervention used in the study and deliberately excluding participants who might somehow not be appropriate for the particular intervention. When researchers qualify their results according to these issues, this is most likely not a serious methodological issue (e.g., the researchers report that the intervention is most appropriate for a particular type of client and may not be appropriate for others). However, when researchers do not make the specifications, they can be problematic. Research studies that include a wider variety of participants often find less convincing evidence for using the technique for all clients.
Likewise, meta-analytic studies that investigate the results of numerous individual studies have produced mixed results regarding the efficiency of Motivational Interviewing. For instance, one meta-analytic study found positive effects for the use of MI and found that MI was more efficient than more traditional methods employed by clinicians who often try and convince resistant clients that they need substance use disorder treatment. Other meta-analytic research has not found significantly positive effects for the use of MI.
Even though the use of meta-analytic studies is preferred as being stronger evidence for the effectiveness of a particular intervention, the studies can still be affected by the types of inclusion criteria the researchers use. Not including a full array of studies (e.g., studies that have both positive and negative effects for the intervention or not including studies with diverse samples) can affect the outcome of this research. This feature of all research emphasizes the importance of having treatment providers who can critically evaluate research evidence and understand how to apply it.
MI, like many very specialized interventions, has a number of very enthusiastic supporters who constantly tout its benefits, whereas it also has a number of harsh critics who claim that the technique is not useful over the wide array of potential clients that are referred for treatment of substance abuse issues. This is a situation where both camps are correct and incorrect when the context of their claims is taken into consideration. There is no one form of therapy or therapeutic intervention that is appropriate for everyone and works in every instance. Unfortunately, this feature of all behavioral therapies is often overlooked.
The research does most likely indicate that Motivational Interviewing works better than no intervention at all and that MI is a type of intervention that may not be applicable for everyone in substance use disorder treatment, but many individuals may benefit from it. The current status of MI indicates that it is quite popular as a potential intervention and used in a number of different contexts outside of substance use disorder treatment (e.g., in education); however, like any other intervention, it has specific strengths and weaknesses and should not be considered a “one-size-fits-all” approach. Combining some of the principles of Motivational Interviewing with other empirically validated approaches may increase its overall effectiveness.