What is one purpose of the One Leg Stand Test?

The One Leg Stand Test is designed specifically to evaluate balance and coordination. During this test, an individual is asked to stand on one leg while counting or performing another simple task. This task requires the participant to maintain stability, which can be significantly impacted by impairments typically associated with alcohol consumption or other impairing substances.

Balance and coordination are critical elements that can indicate whether an individual is operating a vehicle safely. Therefore, this test helps officers detect signs of impairment effectively. The inability to maintain balance while performing the task may suggest that the person's motor skills are affected, which is a relevant aspect of assessing possible intoxication.

The other choices do not relate to the One Leg Stand Test's purpose. For instance, measuring mental arithmetic skills or evaluating stress management do not align with the physical demands of this test. Additionally, gauging overall physical fitness covers a much broader spectrum than the specific skills tested in the One Leg Stand Test, which is focused on balance and coordination in the context of sobriety evaluations.