6. The PDD assessment scale/screening questionnaire

The questionnaire available below is an experimental screening tool based on the DSM-IV criteria for autism which states that to be diagnosed as autistic, one must meet the following criteria:

1. Autistic features as listed on the scale
2. Features involving all 3 areas of impairments -- social, speech and repetitive stereotype behaviors (except for Asperger's which does not include speech and language delay)
3. A severe associated impairment
4. Differentiation into the subgroups of pervasive developmental disorders is made according to the knowledge of the specific DSM-IV criteria.