What was the percentage of accuracy for the San Diego study in the Walk and Turn test?

The percentage of accuracy for the San Diego study in the Walk and Turn test was found to be 79%. This value is significant as it reflects the effectiveness of the Walk and Turn test as a reliable indicator of a driver's impairment due to alcohol consumption. The study provided empirical evidence that helps law enforcement officers assess an individual's sobriety during traffic stops.

The Walk and Turn test is designed to measure not only a subject's balance but also their ability to follow instructions and perform divided attention tasks. Achieving a 79% accuracy rate indicates that, when administered correctly, the test can effectively identify individuals who are over the legal limit for blood alcohol content. This statistic is crucial for supporting the use of standardized field sobriety tests in enforcement and legal settings.

Other listed percentages might seem plausible but do not align with the findings of this particular study, which solidifies the 79% as a benchmark for understanding the test's performance.