1 Tend to be seen in the most severely handicapped/retarded

Manifestations**

4 Tend to be seen in the least severely handicapped/retarded

Social Interaction

1 Aloof and indiferent

2 Approaches for physical needs only 

3 Passively accepts approaches

4  Makes bizarre one-sided approaches

Social communication (verbal and non-verbal)

1 No communication

2 Needs only

3 Replies if approached

4 Spontaneous, but repetitive, one-sided, odd

Social imagination

1 No imagination

2 Copies others mechanically

3 Uses dolls, toys correctly but limited, uncreative, repetitive

4 Acts out one theme (e,g. batman) repetitively; may use other children as "mechanical aids"

Repetitive pattern of self-chosen activities

1 Simple, bodily-directed (e.g. face-tapping, self-injury)

2 Simple, object-directed (e.g. taps, spins, switches lights)

3 Complex routines, manipulation of objects, or movements (e.g. bedtime ritual, lining up objects, attachment to objects, whole-body movements)

4 Verbal, abstract (e.g. timetables, movements of planets, repetitive questioning)

Language - formal system

1 No language

2 Limited - mostly echolalic

3 Incorrect use of pronouns, prepositions; idiosyncratic use of words/phrases; odd constructions

4 Grammatical but longwinded, repetitive, literal interpretations

Responses to sensory stimuli (oversensitive to sound, fascinated by lights, touches, tastes, self-spinning; smells objects or people; indifferenr to pain, heat, cold, etc)

1 Very marked

2 Marked

3 Occasional

4 Minimal or absent

Movements (flaps, jumps, rocks, tiptoe walking, odd hand postures etc.)

1 Very marked 

2 Marked

3 Occasional

4 Minimal or absent

Special skills (manipulation or mechanical objects; music; drawing; mathematics; rote memory; constructional skills etc.)

1 No special skills

2 One skill better than others but all below chronological age

3 One skill around chronological age - rest well below

4 One skill at high level well above chronological age, very different from other abilities