Klien berperilaku kekerasan menunjukkan ketidakmampuan dalam beradaptasi secara kognitif dan emosi konstruktif. Tujuan penulisan menggambarkan penatalaksanaan asuhan keperawatan dengan pendekatan Model Adaptasi Roy dan Johnson?s Behavioural System Model klien risiko perilaku kekerasan. Intervensi keperawatan yang dilakukan adalah assertive training pada 15 klien dan cognitive behaviour therapy pada 24 klien. Hasil assertive training dan cognitive behaviour therapy dapat menurunkan tanda dan gejala perilaku kekerasan dan peningkatan kemampuan koping adaptif dalam menghadapi peristiwa yang menimbulkan perilaku kekerasan. Rekomendasi penerapan Model Adaptasi Roy dan Johnson?s Behavioural System Model dengan intervensi keperawatan assertive training dan cognitive behaviour therapy dapat menurunkan gejala perilaku kekerasan.

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People with tendency to act aggressively shown that they used destructive coping strategies to express their anger. Aim of this paper was to describe the application of Model Adaptasi Roy and Johnson?s Behavioural System Model, focusing on aggresive behavior. Assertive training intervention that provided to 15 clients and cognitive behaviour therapy were that provided to 24 clients. Result of this study shown that sign and symptoms of aggressive behaviour were decreased and increased of client's ability to express their emotion in contructive way. Recommended the Model Adaptasi Roy and Johnson?s Behavioural System Model with assertive training and cognitive behaviour therapy were to derecrease aggresive behaviour.