Final answer:
The Hamilton Rating Scale for Anxiety (HAM-A) is a common standardized screening tool used for assessing anxiety disorders.
Step-by-step explanation:
The common standardized screening tool used for assessing anxiety disorders is the Hamilton Rating Scale for Anxiety (HAM-A). The HAM-A is a self-report inventory that measures the severity of anxiety symptoms. It consists of a series of questions related to anxiety symptoms, such as feelings of tension, worry, and irritability.