Which technique is NOT commonly used for conflict resolution among inmates?

Isolation is not commonly employed as a technique for conflict resolution among inmates because it does not address the underlying issues that lead to conflict. Instead of facilitating communication or understanding, isolation removes individuals from the situation without allowing for resolution through dialogue or compromise.

Mediation, negotiation, and de-escalation are all proactive conflict resolution strategies that involve engaging the involved parties in dialogue to help them come to an understanding or agreement. Mediation involves a neutral third party facilitating discussions between inmates, while negotiation focuses on reaching a mutually acceptable solution. De-escalation techniques aim to reduce the intensity of a conflict through communication and calming methods, making them more effective for resolving disputes in a communal environment like a correctional facility.