A disorder that causes problems in speaking, listening, reading, writing, or mathematical ability.

A learning disability, or specific developmental disorder, is a disorder that inhibits or interferes with the skills of learning, including speaking, listening, reading, writing, or mathematical ability. Legally, a learning disabled child is one whose level of academic achievement is two or more years below the standard for his age and IQ level. It is estimated that 5-20% of school-age children in the United States, mostly boys, suffer from learning disabilities (currently, most sources place this figure at 20%). Often, learning disabilities appear together with other disorders, such as attention deficit/hyperactivity disorder (ADHD). They are thought to be...