What is the accuracy percentage of the Walk-and-Turn (WAT) test when used alone?

The accuracy percentage of the Walk-and-Turn (WAT) test, when used alone, is recognized to be around 68%. This figure is based on research and field studies that have evaluated the performance of this specific sobriety test in identifying impaired drivers.

The Walk-and-Turn test requires participants to walk in a straight line, turn around, and return to the starting position while maintaining specific instructions. The test evaluates both physical and cognitive abilities, including balance, coordination, and the ability to follow multi-step instructions. The 68% accuracy rate indicates that the test can effectively detect impairment, but it also emphasizes the necessity for law enforcement officers to use it in conjunction with other tests and evidence to make a more reliable assessment of a driver's sobriety.

Understanding this accuracy percentage is pivotal for anyone involved with SFST, as it highlights the WAT test's role as one tool among several, rather than a standalone definitive measure of impairment.