| QUICK ANSWER Therapy is not a single approach. There are dozens of distinct therapeutic modalities with different theoretical foundations, different methods, and different evidence bases for different conditions. Choosing the right therapy for the right issue matters because the same approach is not equally effective for all presentations. Understanding the primary evidence-based approaches, what they address well, and what they feel like from the client’s perspective, helps people make better decisions about seeking support and advocate more effectively for the help they need. |
Table of Contents
Most people who decide to try therapy face a confusing array of descriptions and acronyms. CBT, DBT, EMDR, ACT, IFS, somatic therapy, and psychodynamic therapy. The differences between them matter practically, because some approaches are better matched to some presentations than others.
This is a practical guide to the most commonly used evidence-based approaches: what they involve, what they treat well, and what to expect.
The Major Approaches
Cognitive Behavioral Therapy (CBT)
CBT focuses on the relationship between thoughts, feelings, and behaviors, working to identify and change specific patterns of thinking that maintain psychological distress. It is structured, present-focused, and skills-based. It has the strongest evidence base of any psychotherapy and is effective for depression, anxiety disorders, OCD, eating disorders, and many other conditions. It works best when the problem is well-defined and when specific cognitive patterns are clearly maintaining it.
Dialectical Behavior Therapy (DBT)
DBT was developed specifically for borderline personality disorder and combines cognitive-behavioral techniques with mindfulness and acceptance strategies. It focuses on four skill areas: mindfulness, distress tolerance, emotional regulation, and interpersonal effectiveness. It has strong evidence for BPD, chronic suicidality, and self-harm, and is increasingly used for eating disorders and other presentations involving significant emotional dysregulation.
Eye Movement Desensitization and Reprocessing (EMDR)
EMDR uses bilateral stimulation (typically eye movements) while the client briefly focuses on traumatic material to facilitate the processing and integration of traumatic memories. It has strong evidence for PTSD and trauma-related presentations and is notable for producing significant change relatively quickly compared with some other approaches. It works directly with trauma memory and is not primarily a talking therapy.
Acceptance and Commitment Therapy (ACT)
ACT focuses on psychological flexibility: the capacity to contact the present moment fully, to observe thoughts and feelings without being controlled by them, and to act in accordance with your values even in the presence of discomfort. It has strong evidence for anxiety, depression, chronic pain, and presentations where psychological rigidity and avoidance are central.
Internal Family Systems (IFS)
IFS conceptualizes the mind as containing multiple parts with different functions, needs, and levels of activation. It works to develop a compassionate relationship between the observing Self and the various parts, reducing the conflict between parts that drives much psychological distress. It has growing evidence for trauma, complex presentations, and situations where a compassionate internal relationship needs to be developed.
Somatic Approaches
Somatic therapies (Somatic Experiencing, Sensorimotor Psychotherapy) work directly with the body’s experience of distress, recognizing that trauma and chronic stress are stored physiologically and need physiological intervention, not only cognitive intervention. They are particularly well-suited for complex trauma, PTSD, and presentations where standard talking therapy has not been sufficient.
Psychodynamic Therapy
Psychodynamic therapy focuses on the role of unconscious processes, developmental history, and the therapeutic relationship in current functioning. It is less structured than CBT and tends to work more with relational patterns and early experience. It has evidence for personality presentations, complex depression, and situations where understanding the roots of patterns is central to changing them.
| Therapy Type | Best For | What to Expect |
| CBT | Depression, anxiety, OCD, phobias, eating disorders | Structured, homework-based, skills-focused, typically 12-20 sessions |
| DBT | BPD, chronic self-harm, severe emotional dysregulation | Depression, anxiety, OCD, phobias, and eating disorders |
| EMDR | PTSD, trauma, phobias | Bilateral stimulation, direct trauma processing, often shorter than expected |
| ACT | Anxiety, depression, chronic pain, rigidity | Values-based, mindfulness-integrated, focuses on flexibility over symptom elimination |
| IFS | Body-focused, nervous system regulation is often used alongside other approaches | Parts-work, internal dialogue, developing Self-leadership |
| Somatic | Complex trauma, body-stored distress | Skills groups and individual therapy, significant focus on emotional regulation |
| Psychodynamic | Personality patterns, relational difficulties, complex depression | Less structured, relational focus, typically longer-term |
The Most Important Factor: The Therapeutic Relationship
Research consistently finds that the single strongest predictor of therapy outcomes is the quality of the therapeutic relationship: the degree to which the client feels understood, respected, and safely engaged with the therapist. This factor predicts outcomes more strongly than any specific therapeutic technique. A good therapist using a moderately well-matched approach will typically produce better outcomes than a poorly matched therapist using a perfectly matched approach.
This means that if you are not experiencing the relationship with your therapist as safe, respectful, and productive, it is appropriate to say so, to raise concerns with the therapist directly, or to seek a different therapist. The relationship is the medium of change.
Frequently Asked Questions
How do I know which type of therapy to try?
For specific, well-defined presentations (PTSD, OCD, social anxiety), the evidence base provides fairly clear recommendations. For less defined or more complex presentations, a consultation with a therapist who has experience across multiple approaches and can provide a clinical recommendation is more useful than selecting a modality in advance. Many therapists are integrative and draw from multiple approaches based on what the specific person needs.
How long does therapy take?
Duration varies enormously with the presentation, the approach, and the individual. Brief focused CBT for a specific phobia might take 8-12 sessions. Trauma work with EMDR might take 20-30 sessions for a single trauma. Complex presentations involving developmental trauma, personality patterns, or multiple co-occurring conditions typically involve longer-term work. Most people experience meaningful improvement within the first 8-16 sessions, even if full resolution requires longer.
