What percentage indicates accuracy for the One Leg Stand test?

The correct percentage for accuracy in the One Leg Stand test is 83%. This test is primarily used as part of field sobriety testing to assess a person's ability to maintain balance while performing a simple physical task. The 83% accuracy indicates that this is the threshold where the test is deemed effective in determining whether an individual may be impaired, typically in relation to alcohol consumption.

The choice of 83% reflects research findings suggesting that this level of accuracy is reliable for identifying impairment in a range of subjects. This is significant in a law enforcement context because it provides officers with a basis for making informed decisions regarding potential DUI arrests. In contrast, other percentages fall outside the range of established effectiveness for this test, which is why the One Leg Stand test is regarded with an accuracy parameter of 83% in traffic enforcement scenarios.