Does couples therapy work? What the research says

Picture a couple sitting in the car outside a therapist’s office in Lansing, engine still running. One partner is hopeful. The other is thinking, “We’ve tried talking. Why would this be different?” That doubt is common, and it deserves a real answer instead of a pep talk. Here is what decades of research say about whether couples therapy works, how often, and what the numbers do not tell you.

What does the research say about couples therapy effectiveness?

The short version: couples therapy is one of the better-studied forms of therapy, and the average effect is substantial.

• A 2020 meta-analysis in the Journal of Consulting and Clinical Psychology (Roddy and colleagues) pooled 58 studies covering 2,092 couples. Couples in therapy showed a large improvement in relationship satisfaction (Hedges’ g = 1.12), while couples on waitlists did not significantly improve (g = 0.12). Therapy also had significant effects on communication, emotional intimacy and partner behaviors, and gains were generally maintained at follow-up.
• A 2012 review in the Journal of Marital and Family Therapy (Lebow, Chambers, Christensen and Johnson) concluded that couple therapy positively impacts 70% of couples receiving treatment, with effectiveness comparable to individual therapies and far better than no treatment.
• An earlier review of 20 meta-analyses (Shadish and Baldwin, 2003) found marital and family therapy produced clinically significant results in 40% to 50% of those treated.

Why the gap between 70% and 40% to 50%? “Positively impacts” and “clinically significant” measure different things. The first counts couples who improve. The second counts couples who improve enough to move into the range of non-distressed couples. Both are true, and both are useful.

What percentage of couples stay together after couples therapy?

This is one of the most searched questions about therapy, and the honest answer is that it depends on the study, the couples and how long they are followed. One of the best long-term data sets comes from a randomized trial led by Andrew Christensen. It followed 134 chronically and seriously distressed married couples for five years after about eight months of behavioral couple therapy (either integrative or traditional).

• At five years, 25.7% of couples in integrative behavioral couple therapy (IBCT) and 27.9% in traditional behavioral couple therapy were separated or divorced.
• That means roughly 72% to 74% were still together.
• 50.0% of IBCT couples and 45.9% of traditional couples showed clinically significant improvement in satisfaction compared with where they started.

Three caveats matter. These couples were seriously distressed when they began, so results may differ for couples who start earlier. Staying together is not the only good outcome: for some couples, a clear and respectful decision to separate is a healthy result. And research averages cannot predict what will happen for any one couple.

Which approaches have the strongest evidence?

The 2012 review highlighted two approaches with especially promising findings: integrative behavioral couple therapy and emotionally focused therapy. A 2019 meta-analysis of randomized trials (Rathgeber and colleagues) found medium effects at the end of treatment for both emotionally focused couples therapy (g = 0.73) and behavioral couple therapy (g = 0.53), with no significant difference between them. The same review noted that, for behavioral couple therapy, gains measured at 12 months were not maintained, and cautioned about possible publication bias.

The Gottman Method is another widely used approach; The Gottman Institute describes it as beginning with an assessment that informs the therapy. Across the literature, Shadish and Baldwin found that differences among kinds of marital and family interventions tend to be small, which suggests that a skilled therapist and a good fit with both partners matter a great deal.

What makes couples therapy more likely to help?

Research and clinical experience point to a few patterns:

• Both partners participate. Many therapists find the work goes better when each person is willing to look at their own part, even if one partner is more eager at first.
• Distress is not a deal-breaker. In the 2020 meta-analysis, couples with greater distress at the start actually showed larger gains.
• The right fit. Both partners should feel the therapist is fair and not taking sides.
• Booster support. In the Christensen trial, the advantage of one approach faded over five years without further sessions, which hints that check-ins after therapy may help some couples keep gains.

When is couples therapy not the right fit?

Couples therapy is generally not recommended when there is ongoing violence, threats or a partner who feels afraid. The National Domestic Violence Hotline explains that abuse is about power and control, not a relationship problem, and that joint sessions can put a survivor at risk. Individual support is usually a safer starting point. You can reach the Hotline at 1-800-799-7233 or thehotline.org. If you or someone you love is in crisis or thinking about suicide, call or text 988 to reach the 988 Suicide and Crisis Lifeline.

Couples who are unsure whether to stay together at all may find discernment counseling a better first step than traditional couples therapy.

So, is couples therapy worth it?

The research suggests that most couples who try it experience some improvement, and many experience a lot. It does not promise a particular outcome, and it asks real effort from both people. What it offers is a structured, supported way to understand the patterns that keep repeating, whether that is the same argument about chores, a slow drift apart, or the aftermath of infidelity.

If cost is part of the “is it worth it” question, see what couples therapy costs in Michigan. If you are ready to explore it, learn more about couples therapy.