The evaluation of Asperger's disorder includes physical examination, medical history, and psychological testing for autism.

The Denver Developmental Screening Test (DDST) will show a delay in development of language and social skills. IQ scores are variable, depending on the degree of cooperation.

There are no laboratory tests that reliably diagnose Asperger's disorder.

Tests that may be used to evaluate Asperger's disorder include:

• EEG

Tests for Asperger's disorder that are less commonly performed:

• CT scanning of the brain
• MRI scan of the brain