Tarbiat Modares University International Journal of Musculoskeletal Pain Prevention 2476-5279 11 4 2026 09 01 The Efficacy of Cognitive Behavioral Play Therapy on Behavioral Problems and Gross Motor Skills in Children with Intellectual Disability 1504 1512 29019 10.48311/ijmpp.2026.121605.82929 EN Arash Abbaspour M.A. in Psychology and Education of Exceptional Children, Isfahan University, Isfahan, Iran 0000-0003-3016-3217 Alireza Mohammadi Sangachin Doost PhD Student in Psychology and Education of Exceptional Children, Faculty of Literature and Humanities, SR. C., Islamic Azad University, Tehran, Iran. 0000-0001-6676-8838 Roghayeh Safari Gezaz M.A. in General Psychology, Faculty of Literature and Humanities, University of Guilan, Rasht, Iran. 0009-0009-5528-3160 Abbas Ali Hosseinkhanzadeh Professor, Department of Psychology, University of Guilan, Rasht, Iran. 0000-0003-4060-0011 Journal Article 2026 07 11 Aims: The present study aimed to investigate the efficacy of Cognitive-Behavioral Play Therapy (CBPT) on behavioral problems and gross motor skills in children with Intellectual Disability (ID). Method and Materials: This study was designed as a quasi-experimental study with a pretest, post-test, and control group design. The population consisted of 7-10-year-old educable children with ID referred to special schools in Rasht, Iran, in the academic year 2025-2026. Using a multi-stage sampling method, 38 children exhibiting behavioral disorders were selected and randomly assigned to experimental (N=19) and control groups (N=19). An approach of CBPT was administered to the experimental group according to the protocol of Knell for 12 sessions of 60 minutes, and the control group received no treatment. The instruments used were the Rutter Behavioral Problems Scale (RBPS) and the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP), and the data obtained were analyzed by multivariate analysis of covariance (MANCOVA). Findings: The results demonstrated that CBPT significantly decreases aggression and hyperactivity (F = 63.79), anxiety and depression (F = 37.36), social maladjustment (F = 55.36), antisocial behaviors (F = 50.31), attention deficit (F = 61.81), and increases gross motor skills (F = 77.78) in children with ID (P< 0.001).Conclusion: The findings suggest that CBPT is an effective intervention for reducing behavioral problems and enhancing gross motor skills in children with ID. Therefore, this therapeutic approach may be considered a practical and beneficial strategy in educational and rehabilitation settings. https://ijmpp.modares.ac.ir/article_29019_b9b5c1aceaf0491b0c041bca34418f07.pdf