The Walk-and-Turn test may not be valid for individuals older than what age?

The Walk-and-Turn test is designed to evaluate a person's balance, coordination, and ability to follow instructions, which can be affected by a variety of factors, including age. Research has shown that individuals who are older, particularly those aged 65 and over, may experience natural declines in physical capabilities that can adversely affect their performance on this test.

Consequently, the validity of the results from the Walk-and-Turn test can be compromised for those in this age group, as age-related factors such as decreased balance, slower reaction times, and other physical limitations can lead to false indications of impairment. This emphasizes the importance of considering the participant's age when administering the test, as it can lead to misinterpretation of their sobriety based on performance. The threshold of 65 years is significant for maintaining the test's accuracy and ensuring fair assessment across different age groups.