Adlerian therapy has some evidence supporting its effectiveness, but it does not have the same depth of research as therapies like cognitive behavioral therapy (CBT) or dialectical behavior therapy (DBT). The strongest evidence exists for a specific branch called Adlerian Play Therapy, which has formally reached evidence-based treatment status and been recognized by the Substance Abuse and Mental Health Services Administration (SAMHSA). For broader Adlerian talk therapy with adults, the research base is thinner, with a handful of controlled studies showing positive results rather than the large body of trials that backs more widely studied approaches.
Where the Evidence Is Strongest
Adlerian Play Therapy (AdPT), developed in the 1980s, is the most rigorously tested application of Adlerian principles. A randomized controlled trial with 58 elementary school students exhibiting disruptive classroom behaviors found that children receiving AdPT showed statistically significant reductions in behavior problems, with moderate to large treatment effects as reported by teachers and blinded raters. Teachers also reported significantly less stress in their relationships with those students. The study’s design was strong enough that SAMHSA adopted it into its registry of evidence-based programs.
A systematic review comparing cognitive behavioral and Adlerian play therapies for children ages 3 to 12 concluded that both approaches effectively address externalized behavior problems (like aggression and defiance) and internalized problems (like withdrawal and anxiety). Their effects on executive function and memory were more mixed.
Results for Depression and Anxiety
A controlled study published in The Counseling Psychologist tested a group Adlerian intervention for middle-aged South Korean women experiencing a culturally specific stress syndrome along with depression and anxiety. The study compared 22 women receiving the Adlerian program to 16 on a waitlist, with a four-week follow-up.
The results were notable across the board. Depression scores dropped significantly in the treatment group compared to controls, with a large effect size of 1.04 at the end of treatment that actually grew to 1.45 at follow-up, meaning improvements continued after sessions ended. For anxiety, the treatment group also improved significantly more than the control group, with an effect size of 1.03 at post-treatment. About 78% of participants in the treatment group crossed below the clinical threshold for their primary symptoms by the end of treatment, and 72% maintained that improvement at follow-up.
These are encouraging numbers, but it’s worth noting this was a single study with a small sample size and a specific cultural population. It demonstrates that Adlerian methods can produce measurable change, but it doesn’t establish the kind of broad, replicated evidence base that exists for CBT across dozens of conditions.
Typical Treatment Length
Adlerian therapy doesn’t follow a rigid session protocol the way some manualized treatments do. In research settings, play therapy sessions for children have typically run 30 minutes each, twice per week, with total treatment spanning around 16 to 21 sessions. Some research suggests that shorter, more intensive formats (8 weeks of frequent sessions) may work better than spreading the same number of sessions over 16 weeks. For adults, the approach is more open-ended, with duration varying based on the complexity of the issues being addressed.
How It Compares to Better-Studied Therapies
CBT has been tested in hundreds of randomized controlled trials across conditions ranging from depression and generalized anxiety to PTSD, OCD, insomnia, and chronic pain. Adlerian therapy has a fraction of that research base. This doesn’t mean Adlerian therapy is ineffective. It means the evidence is early-stage by comparison. Many of Adler’s original ideas, like the importance of social connection, feelings of belonging, and early family dynamics, have been absorbed into modern therapeutic approaches without always being credited to him. So some of what makes Adlerian therapy work overlaps with principles validated through other frameworks.
The head-to-head comparisons that do exist are limited. In the children’s play therapy space, Adlerian and cognitive behavioral play therapies appear to perform similarly for behavior problems. No large-scale trials have directly compared traditional Adlerian talk therapy to CBT for adult depression or anxiety.
What This Means in Practice
If you’re considering Adlerian therapy, the honest picture is this: it has real evidence behind it, particularly for children’s behavioral issues and for reducing depression and anxiety in specific populations. It has not been tested as extensively as CBT, and it does not appear on most major lists of empirically supported treatments for specific diagnoses like PTSD or panic disorder. The existing studies that do exist tend to show positive outcomes, but they are few in number and often small in scale.
Adlerian therapy’s emphasis on understanding your place in your family, building a sense of purpose, and strengthening social connections resonates with many people in ways that feel different from the structured homework and thought-challenging of CBT. For some, that fit matters more than the volume of clinical trials behind the approach. The key is knowing that while the evidence is promising, it is not yet as robust as what supports some alternative options.