Which statement does NOT describe the effect of socioeconomic status (SES) upon a person's life span?

The statement that the impact of socioeconomic status (SES) on life span is decreasing in the U.S. does not accurately represent the current understanding of SES effects. Research consistently shows that socioeconomic status plays a significant role in determining various life outcomes, including health and longevity.

Higher SES generally leads to better health outcomes due to access to resources such as healthier food options, safer living conditions, and better healthcare. Individuals with lower SES often experience higher mortality rates because they may face increased exposure to stress, poorer health services, and limited access to preventative care. Additionally, SES influences access to health care and resources, meaning that those with greater financial means are more likely to receive the medical attention they need, contributing to longer life spans.

In contrast, the notion that the impact of SES is decreasing suggests a misunderstanding of the entrenched and persistent disparities that continue to affect health and life expectancy in relation to social and economic factors.