Can ADHD cause a low IQ score?

ADHD is often also associated with lower intelligence quotient (IQ; e.g., Crosbie and Schachar, 2001). For instance, Frazier et al. (2004) reported in their meta-analysis that in comparison to individuals without ADHD, individuals with ADHD score an average of 9 points lower on most commercial IQ tests.

Is an IQ test part of an ADHD test?

Intelligence tests are a standard part of most thorough evaluations because they not only measure IQ but can also detect certain learning disabilities common in people with ADHD.

Do people with ADHD usually have a high IQ?

ADHD can pose many challenges in everyday activities. But, many people take comfort in the misconception that children with ADHD are smarter than those without the disorder. However, intelligence and ADHD don’t go hand in hand. Some people with ADHD might have higher IQs.

What is the test for ADHD called?

What is ADHD screening? ADHD screening, also called an ADHD test, helps find out if you or your child has ADHD. ADHD stands for attention deficit hyperactivity disorder. It used to be called ADD (attention-deficit disorder).

Do adults with ADHD have a lower IQ than others?

Adults with ADHD test just as well as their peers on measures of IQ — once working memory and processing speed are taken out of the equation. Lower IQ scores among adults with ADHD do not necessarily reflect lower intelligence, but rather comparatively poor working memory and decreased processing speed, according to a 2014 study. The study,…

Do people with ADHD test as well as their peers?

Adults with ADHD test just as well as their peers on measures of IQ — once working memory and processing speed are taken out of the equation. Measures of working memory and processing speed are critical for an accurate overall picture of someone’s IQ, they write, and the WAIS-IV and FSIQ results are more widely accepted than the GAI.

Does high IQ affect cognitive function?

According to a 2010 study published in Psychological Medicine, adults who had both high IQs and ADHD were found to have overall less cognitive function compared to other participants who had high IQ but not ADHD. A range of verbal, memory, and problem-solving tests were used in the study.

Are adults with ADHD smarter than others?

Differences in IQ scores might not be a result of lower overall intelligence, it seems; rather, adults with ADHD may be as smart or smarter than control subjects — though they might be held back by poor working memory and weaknesses in processing speed.