A PMHNP would like to monitor a client's progress in anxiety symptom reduction over time using a clinician-administered anxiety rating scale. Which of the following is the most commonly used clinician-administered anxiety rating scale?

Choice A reason: The Beck Anxiety Inventory is a self-report measure, not a clinician-administered scale. Choice B reason: GAD-7 is also a self-report questionnaire, widely used for generalized anxiety disorder but not administered by clinicians. Choice C reason: The Hamilton Anxiety Scale (HAM-A) is the most commonly used clinician-administered instrument for assessing anxiety severity, allowing monitoring of treatment progress over time. Choice D reason: The Liebowitz Social Anxiety Scale assesses social anxiety, is clinician-administered, but is more specialized and less commonly used for general anxiety monitoring.