A common way of measuring someone's level of fear or anxiety is by measuring

Question

Quizplus · Accepted Answer

Changes in the startle reflex to a sudden sound are a reliable and objective measure of fear or anxiety because the autonomic nervous system responds quickly to perceived threats, leading to changes in muscle tension and heart rate that result in a heightened startle response. This response has been shown to be greater in people with anxiety disorders compared to those without. The other options listed are not as reliable or specific in measuring fear or anxiety.

A Common Way of Measuring Someone's Level of Fear or Anxiety