Child Therapy Institute - December 2025

Research demonstrating: Child Directed Play therapy, Sandplay,  Expressive Art, and Cognitive Behavioral Therapy are evidence based practices for children

Child-Directed Play Therapy (CDPT / CCPT)

Meta-Analyses

1. Bratton et al. (2005) - Meta-analysis of play therapy outcomes

This extensive meta-analysis of 93 controlled play therapy studies identified moderate to substantial treatment effects (≈0.80) across a diverse array of child emotional and behavioral issues. Improvements were consistent for both internalizing symptoms (anxiety, withdrawal) and externalizing symptoms (aggression, acting out). Humanistic and nondirective models, particularly CCPT, exhibited the most significant effects.

Citation: Bratton, S. C., Ray, D., Rhine, T., & Jones, L. (2005). The efficacy of play therapy with children: A meta-analytic review of treatment outcomes. Professional Psychology: Research and Practice, 36(4), 376–390. https://doi.org/10.1037/0735-7028.36.4.376

2. Lin & Bratton (2015) - Meta-analysis of CCPT effectiveness

A moderate overall effect size (≈0.47) was found in this meta-analysis of 52 CCPT outcome studies, with particularly strong effects for children of color (≈0.76). CCPT increased self-efficacy and academic performance, decreased behavioral issues, and improved parent-child relationship stress. Significant moderators included treatment integrity, caregiver involvement, and child age, with younger children (≈6–7 years) exhibiting strong improvements.

Citation: Lin, Y.-W., & Bratton, S. C. (2015). A meta-analytic review of child-centered play therapy approaches. Journal of Counseling & Development, 93(1), 45–58.

3. Parker et al. (2021) - Meta-analysis of CCPT for disruptive behavior

CCPT outperforms waitlist and alternative treatments in reducing disruptive and externalizing behaviors in children, according to this meta-analysis of 23 group-design studies (N=908). The results supported CCPT as a versatile, developmentally sensitive intervention for behavioral dysregulation and were consistent in both school and outpatient settings. The relational aspects of CCPT (empathy, acceptance, and safe limit-setting) are emphasized by the authors as crucial mechanisms that improve behavioral control and self-regulation.

Citation: Parker, M. M., Hunnicutt Hollenbaugh, K. M., & Kelly, C. T. (2021). Exploring the impact of child-centered play therapy for children exhibiting behavioral problems: A meta-analysis. International Journal of Play Therapy, 30(4), 259–271. https://doi.org/10.1037/pla0000128

Systematic Reviews

4. Drisko et al. (2020) - Systematic review of individual child play therapy

For issues like aggression, anxiety, attention problems, and externalizing behaviors, individual child play therapy—most frequently CCPT—showed medium to large effect sizes (d ≈ 0.35–0.80) across 17 controlled studies in this systematic review. Results show that play therapy satisfies the requirements for an empirically validated treatment, with the best results in relational functioning, emotional expression, and self-regulation. Symbolic play, emotional processing, and the therapeutic alliance were among the mechanisms of change.

Citation: Drisko, J., Hunnicutt Hollenbaugh, K. M., Kelly, C. T., & others. (2020). Is individual child play therapy effective? Clinical Social Work Journal, 48(3), 307–324. https://doi.org/10.1007/s10615-020-00751-z

Randomized Controlled Trials (RCTs)

5. Burgin & Ray (2022) - CCPT for childhood depression in schools

In this randomized school-based trial involving 71 children aged 5 to 9, eight weeks of biweekly CCPT resulted in substantial decreases in depressive symptoms, as evidenced by both parental reports and independent behavioral observations. There were also fewer sluggish cognitive tempo and overall problem behaviors in the kids. Results were uniform among racially and ethnically diverse children enrolled in Title I schools, underscoring CCPT’s effectiveness for marginalized youth. This study indicates that CCPT may function as an efficacious early intervention for mood symptoms in young children in school or clinical environments.

Citation: Burgin, E., & Ray, D. C. (2022). Child‐centered play therapy for childhood depression in elementary school settings: A randomized controlled trial. Journal of Child and Family Studies, 31(2), 293–307. https://doi.org/10.1007/s10826-021-02153-2

6. Ray et al. (2022) - CCPT for Children with ACEs

In children with two or more ACEs, this randomized controlled trial showed that CCPT significantly improved empathy, social competence, self-regulation, and decreased general behavioral issues. Results show that CCPT promotes the development of protective social-emotional skills as well as the reduction of symptoms. The improvements observed here imply that CCPT can serve as an early buffering intervention for children on high-risk developmental trajectories because ACEs raise the risk of complex trauma. For kids whose early experiences include danger, stress, or instability, the study emphasizes the importance of stable, accepting relational environments.

Citation: Ray, D. C., Burgin, E., Gutierrez, D., Ceballos, P., & Lindo, N. (2022). Child-centered play therapy and adverse childhood experiences: A randomized controlled trial. Journal of Counseling & Development, 100(2), 134–145. https://doi.org/10.1002/jcad.12412

7. Stulmaker & Ray (2015) - CCPT for young children with anxiety

Compared to an active control group, children receiving CCPT in this controlled trial with 6–8-year-olds demonstrated significant reductions in overall anxiety and worry. The nondirective, symbolic, play-based format seemed developmentally appropriate and approachable because anxiety in young children frequently shows up somatically or behaviorally rather than verbally. One of the main mechanisms promoting emotional integration was found to be the therapeutic relationship, which includes empathy, unconditional positive regard, and child-led pacing.

Citation: Stulmaker, H. L., & Ray, D. C. (2015). Child-centered play therapy with young children who are anxious: A controlled trial. Children and Youth Services Review, 57, 127–133. https://doi.org/10.1016/j.childyouth.2015.08.005

8. Topal et al. (2025) - RCT of play-based therapy for earthquake survivors

A structured therapeutic play program (TOTEM) with preschool earthquake survivors was assessed in this randomized controlled trial. When compared to standard care, children receiving play-based intervention demonstrated notable improvements in anxiety, psychosocial distress, and sleep disturbances one month after treatment. The results highlight how crucial play is for young children who are unable to verbally process traumatic events. This trial demonstrates to clinicians that structured play interventions can lessen post-disaster symptoms, stabilize emotional expression, and reestablish a sense of safety after acute trauma.

Citation: Topal, S., Yalnızoğlu Çaka, S., Uysal, G., Alabay, E., Demir, Y., & Arslan, S. C. (2025). The effect of therapeutic play-based intervention programme applied to earthquake victim preschool children on psychosocial well-being: A randomized controlled trial. BMC Psychology, 13(981). https://doi.org/10.1186/s40359-025-03317-4

9. Wong et al. (2023) - CCPT for executive function in children with ADHD

Compared to a waitlist control, children with ADHD showed notable improvements in cognitive flexibility, a fundamental executive function (EF), following 12 CCPT sessions. Additionally, compared to peers who were typically developing, behavioral symptoms were typically higher at baseline, supporting the clinical significance of EF-focused outcomes. The authors suggest that the relational safety, autonomy, and expressive play activities of CCPT may trigger neuroplastic pathways associated with executive functions and self-regulation.

Citation: Wong, T.-Y., Chang, Y.-T., Wang, M.-Y., & Chang, Y.-H. (2023). The effectiveness of child-centered play therapy for executive functions in children with attention-deficit/hyperactivity disorder. Clinical Child Psychology and Psychiatry, 28(3), 877–894. https://doi.org/10.1177/13591045221128399

Quasi-Experimental / Pre–Post Designs

10. Cochran & Cochran (2017) - CCPT in high-poverty schools

This pre–post study conducted in high-poverty elementary schools demonstrated that children undergoing CCPT experienced substantial, clinically significant reductions in disruptive, aggressive, and attention-related behaviors over nine sessions. Teachers observed substantial improvements in self-efficacy, with progress being notably robust across all demographic groups, including children of color. The findings underscore CCPT as a relational intervention that facilitates regulation and behavioral recovery for children affected by chronic stress, educational disparities, and environmental challenges.

Citation: Cochran, J. L., & Cochran, N. H. (2017). Pre–post demographic study of child-centered play therapy for students with highly disruptive behavior in high-poverty schools. Children and Youth Services Review, 82, 362–370.

Expressive Arts Therapy (EXA)

1. Joschko et al. (2024) - Meta-analysis of active visual art therapy

Active visual art therapy significantly improved depression, anxiety, self-esteem, and social adjustment, according to this systematic review and meta-analysis (across a variety of populations and diagnoses). The therapeutic mechanisms—creative engagement, sensory exploration, and symbolic expression—are directly applicable to child psychotherapy, even though many of the included studies include youth samples. The review emphasizes the significant psychological benefits of guided imagery and structured art tasks.

Citation: Joschko, R., Haresaku, S., Smith, L., & Martin, L. (2024). Active visual art therapy and health outcomes: A systematic review and meta-analysis. JAMA Network Open, 7(9), e242127. https://doi.org/10.1001/jamanetworkopen.2024.2127

2. Morison et al. (2022) - Systematic review of creative arts therapies for traumatized youth

According to this systematic review and meta-analysis, children exposed to traumatic events experienced significant reductions in PTSD symptoms, depressive mood, and general distress when they received creative arts-based interventions, such as visual art, drama, and music. Interventions that specifically targeted trauma processing through expressive and symbolic work showed the strongest effects. This shows therapists that when children are not ready for verbal psychotherapy, EXA modalities can provide developmentally appropriate, nonverbal pathways for trauma integration.

Citation: Morison, L., Simonds, L., & Stewart, S. J. (2022). Effectiveness of creative arts-based interventions for treating children and adolescents exposed to traumatic events: A systematic review of the quantitative evidence and meta-analysis. Arts & Health, 14(3), 237–262. https://doi.org/10.1080/17533015.2021.2009529

3. Zhang et al. (2025) - Meta-analysis of art therapy for depression

With a moderate-to-large effect size (SMD ≈ –0.72), this meta-analysis of 12 controlled trials demonstrated that art therapy significantly reduced depressive symptoms in children and adolescents. Effective interventions focused on art-based meaning-making, emotional externalization, and expressive imagery. The authors affirm that art-based modalities offer a promising alternative or adjunct for mood disorders despite the high heterogeneity and small sample sizes.

Citation: Zhang, B., Yang, L., Qi, Y., Liu, W., Mo, L., & Wong, C. L. (2025). The effect of art therapy interventions to alleviate depression symptoms among children and adolescents: A systematic review and meta-analysis. Clinics, 80(3), 100683. https://doi.org/10.1016/j.clinsp.2025.100683

4. Zhou et al. (2025) - Art therapy for children with cancer (meta-analysis)

Art therapy significantly reduced anxiety and depression in children receiving cancer treatment across eight studies (RCTs and quasi-experimental). Additionally, narrative data demonstrated improvements in overall psychological well-being, emotional expression, and stress reduction. These findings demonstrate that creating art provides a secure and encouraging setting for kids dealing with chronic pain, medical trauma, and treatment-related anxiety.

Citation: Zhou, S., Li, H., Yang, Y., Qi, Y., Liu, W., Mo, L., & Wong, C. L. (2025). Effects of art therapy on psychological outcomes among children and adolescents with cancer: A systematic review and meta-analysis. BMC Complementary Medicine and Therapies, 25, 149. https://doi.org/10.1186/s12906-025-04866-2

Systematic Reviews

5. Bosgraaf et al. (2020) - Systematic narrative review of art therapy for psychosocial problems

Art therapy consistently enhances emotional expression, coping, self-regulation, and overall psychosocial functioning, according to this narrative systematic review, which summarized 37 studies. Symbolic communication and creative exploration were found to be important mechanisms of change, and both directive and nondirective approaches were successful. The results show that both structured and unstructured art processes provide distinct opportunities for relational connection, emotional safety, and mastery for clinicians.

Citation: Bosgraaf, L., Spreen, M., Pattiselanno, K., & van Hooren, S. (2020). Art therapy for psychosocial problems in children and adolescents: A systematic narrative review on art therapeutic means and forms of expression, therapist behaviour, and supposed mechanisms of change. Frontiers in Psychology, 11, 584685. https://doi.org/10.3389/fpsyg.2020.584685

6. Wei, Lai, & Ho (2025) - Art therapy for ASD (systematic review)

According to this systematic review of 12 RCTs, art therapy supports emotional expression, enhances social communication, improves motor and language skills, and lessens symptoms associated with ASD. The best outcomes came from interventions that prioritized autonomy, symbolic expression, and sensory engagement. The results validate EXA as a helpful supplement to current ASD services, particularly for kids who have trouble with verbal or cognitive-based therapies.

Citation: Wei, S., Lai, A. H. Y., & Ho, H. W. H. (2025). Art therapy for children and adolescents with autism spectrum disorder: A systematic review. Healthcare, 13(22), 2960. https://doi.org/10.3390/healthcare13222960

Sandplay/Sandtray Therapy

Meta-analysis / Systematic Review

1. Yuxi et al. (2024) – Systematic Review & Meta-analysis of Sandplay Therapy for ASD

This systematic review and meta-analysis synthesized 12 randomized controlled trials (N = 791) examining sandplay therapy for children with Autism Spectrum Disorder. Across all studies, sandplay therapy significantly improved social communication deficits (SMD = –1.42). Subgroup analyses showed that children ages 3–12 benefited most from once-weekly sessions delivered over 22–28 weeks. Both individual and integrated sandplay formats were effective, and no adverse events were reported. Evidence quality was rated high, with consistent effects and minimal bias across trials. The findings provide strong support for sandplay therapy as a relational, sensory-based intervention that enhances social interaction and communication in autistic children.

Citation: Yuxi, R., Shuqi, J., Cong, L., Shufan, L., & Yueyu, L. (2024). A systematic review of the effect of sandplay therapy on social communication deficits in children with autism spectrum disorder. Frontiers in Pediatrics, 12, 1454710. https://doi.org/10.3389/fped.2024.1454710

Randomized Controlled Trial (RCT)

2. Tan et al. (2021) – RCT of Sandplay Therapy for Emotional–Behavioral Problems

This systematic review and meta-analysis synthesized 12 randomized controlled trials (N = 791) examining sandplay therapy for children with Autism Spectrum Disorder. Across all studies, sandplay therapy significantly improved social communication deficits (SMD = –1.42). Subgroup analyses showed that children ages 3–12 benefited most from once-weekly sessions delivered over 22–28 weeks. Both individual and integrated sandplay formats were effective, and no adverse events were reported. Evidence quality was rated high, with consistent effects and minimal bias across trials. The findings provide strong support for sandplay therapy as a relational, sensory-based intervention that enhances social interaction and communication in autistic children.

Citation: Tan, J., Yin, H., Meng, T., & Guo, X. (2021). Effects of sandplay therapy in reducing emotional and behavioural problems in school-age children with chronic diseases: A randomized controlled trial. Nursing Open, 8(6), 3099–3110. https://doi.org/10.1002/nop2.1022

Evidence Review / Multi-Method Synthesis

3. Freedle (2022) Evidence-Based Review of Sandplay Therapy

This comprehensive review synthesizes decades of research—including qualitative studies, quasi-experimental designs, randomized controlled trials, and multiple meta-analyses—to describe the empirical foundation of sandplay therapy. Freedle highlights that sandplay is an effective, developmentally attuned, multisensory, nonverbal modality for children with trauma histories, ADHD, anxiety, depression, chronic illness, and ASD. Meta-analytic findings demonstrate large overall effect sizes (Hedges’ g ≈ 1.10) across internalizing, externalizing, and neurodevelopmental symptoms. The review establishes sandplay as an evidence-based treatment comparable in effect to widely recognized child therapies such as CBT, while offering unique advantages for children with language barriers, regulation difficulties, and trauma-related needs.
Citation: Freedle, L. R. (2022). Sandplay therapy: An evidence-based treatment. Journal of Sandplay Therapy, 31(1), 3–18.

Evidence Summary

4. Total Life Counseling Center (2025) – Evidence Summary of Play and Sandtray Therapy

This article summarizes evidence from neurobiological studies, randomized controlled trials, and meta-analytic findings supporting play-based and sandtray interventions. Although not a peer-reviewed academic publication, it accurately references and synthesizes empirical research demonstrating sandplay therapy as a developmentally appropriate modality for children experiencing trauma, anxiety, behavioral challenges, and attachment disruptions. The piece presents sandtray as a well-supported therapeutic approach grounded in relational, expressive, and sensory-based mechanisms.

Citation: Total Life Counseling Center. (2025, July 31). Is play therapy evidence based or just child's play? https://www.totallifecounseling.com/is-play-therapy-evidence-based/

For further information, read the studies here

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