To measure fear or anxiety in both humans and nonhumans, researchers measure variations in an individual's ____.

Question

Quizplus · Accepted Answer

The startle reflex is a common and reliable measure of fear and anxiety in both humans and nonhumans. When an individual is startled, they exhibit a rapid muscle response, such as flinching or jumping. The strength and speed of this response can be measured and used as an indicator of fear and anxiety levels. This measure is often used in research on anxiety disorders or the effects of stressors. The other options may be used in different contexts, but they are not as reliable or consistent as the startle reflex.

To Measure Fear or Anxiety in Both Humans and Nonhumans