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

A) changes in the startle reflex to a sudden sound.
B) differences in blood flow to the left and right hemispheres of the brain.
C) changes in the person's ability to concentrate on intellectual tasks.
D) how often the person stutters or repeats words in everyday conversation.

Question

Anand Singh · Accepted Answer

Final Answer : A, Explanation :  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.

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