Demographics with the Greatest Increase in ADHD Prevalence (2003-2007)
A study tracking parent-reported ADHD from 2003 to 2007 found that while the increase was observed across all sociodemographic groups, it was most pronounced among specific populations. The groups experiencing the largest increases were older teenagers (ages 15–17), multiracial and Hispanic children, and children whose primary language was not English.
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Demographics with the Greatest Increase in ADHD Prevalence (2003-2007)
Methodological Limitations of Parent-Reported ADHD Prevalence Studies
Speculative Explanations for the Apparent Rise in ADHD Prevalence
A public health researcher reviews two studies on the prevalence of a common neurodevelopmental disorder among children in the United States. The findings are as follows:
- Study 1 (2003-2007): The percentage of children aged 4-17 reported by their parents as having the disorder increased from 7.8% to 9.5%.
- Study 2 (1998-2009): The percentage of children aged 5-17 reported by their parents as having the disorder increased from 6.9% to 9.0%.
Based only on the information provided in these two studies, what is the most logical conclusion the researcher can draw?
State-Level Increases in Parent-Reported ADHD Prevalence (2003-2007)