AP PSYCHOLOGY

Detailed explanation-1: -Obsessive-compulsive disorder (included in the obsessive-compulsive and related disorders), acute stress disorder, and posttraumatic stress disorder (included in the trauma and stress-related disorders) are no longer considered anxiety disorders as they were in the previous version of the DSM.

Detailed explanation-2: -Abstract. Over the past decade, a number of well-controlled studies have supported the validity of a cognitive model of generalized anxiety disorder (GAD) that has four main components: intolerance of uncertainty, positive beliefs about worry, negative problem orientation, and cognitive avoidance.

Detailed explanation-3: -Anxiety is frequently observed among patients with schizophrenia. Anxiety may present as a component of schizophrenia (particularly during an acute psychotic episode), a result of an underlying organic condition, a medication side effect, or a symptom of a co-occurring anxiety disorder.