* Different definitions of literacy: There's no universally agreed-upon definition of what constitutes "literacy." Some definitions focus on basic reading and writing, while others encompass advanced skills like critical thinking and problem-solving.
* Varying data sources: Different organizations collect data on literacy, using different methods and definitions, leading to potential discrepancies in results.
However, we can look at some general estimates:
* The US Department of Education: In 2017, the Department of Education estimated that 14.7% of adults in the US had below basic literacy skills. This means they struggled with basic tasks like reading a newspaper or filling out a job application.
* The National Assessment of Adult Literacy (NAAL): This assessment, conducted in 2003, found that 19% of adults had below basic literacy skills.
* Other estimates: Some organizations estimate that up to 30% of adults in the US struggle with literacy.
Overall, it's safe to say that a significant portion of the US population faces challenges with literacy. While the exact percentage is difficult to pin down, it's clear that literacy remains a critical issue in the US.
For more detailed information, you can consult sources like the US Department of Education, the National Center for Education Statistics, and the National Assessment of Adult Literacy.