Which of the following disorders is associated with traumatic experiences and events?

Posttraumatic Stress Disorder (PTSD) is directly linked to experiencing or witnessing traumatic events. These events can include situations such as serious accidents, natural disasters, violent assaults, combat, or any event that causes intense fear, horror, or helplessness. The core features of PTSD involve re-experiencing the trauma through flashbacks or nightmares, avoidance of reminders of the trauma, and heightened arousal that can manifest as irritability, difficulty sleeping, or being easily startled. This disorder is characterized by a specific response to traumatic experiences, differentiating it from other anxiety-related disorders.

In contrast, the other disorders mentioned do not have this direct connection to trauma. Social Phobia is more associated with intense fear of social situations rather than an identifiable traumatic event. Generalized Anxiety Disorder involves excessive worry about various aspects of life, and while it may be triggered by stressful events, it does not stem primarily from trauma. Obsessive-Compulsive Disorder (OCD) involves unwanted repetitive thoughts and behaviors and is also not defined by traumatic experiences. Thus, PTSD is distinctively recognized for its association with traumatic events, confirming it as the correct answer.