Psychological assessments will generally reveal high scores on items that measure memory, but lower on items that measure social comprehension and judgment. Individuals with Asperger's are often keenly interested in and aware of others, but do not have the skills to engage them successfully. There is no delay in language development in individuals with Asperger's Disorder. Frequently their language skills are well developed, but often quite bookish. They will talk for long periods of time with considerable knowledge about topics that others are not interested in discussing.
Motor skills are often an area of significant strength for individuals with Autistic Disorder.
Individuals with Asperger's are often quite clumsy and poorly coordinated. For example, they may be able to tell the day on which a certain date will occur. Individuals with Asperger's will have an interest that will become an obsession. The diagnosis of Asperger's usually occurs much later than that of Autistic Disorder. This is a significant factor in the relatively late identification of Asperger's.