Sally-Anne test
Encyclopedia
The Sally–Anne test is a psychological test, used in developmental psychology
Developmental psychology
Developmental psychology, also known as human development, is the scientific study of systematic psychological changes, emotional changes, and perception changes that occur in human beings over the course of their life span. Originally concerned with infants and children, the field has expanded to...

 to measure a person's social cognitive
Social cognition
Social cognition is the encoding, storage, retrieval, and processing, in the brain, of information relating to conspecifics, or members of the same species. At one time social cognition referred specifically to an approach to social psychology in which these processes were studied according to the...

 ability to attribute false beliefs to others (Wimmer & Perner, 1983). In 1988, Leslie and Frith repeated the experiment with human actors (rather than dolls) and found similar results.

Test description

In the Baron-Cohen
Simon Baron-Cohen
Simon Baron-Cohen FBA is professor of Developmental Psychopathology in the Departments of Psychiatry and Experimental Psychology at the University of Cambridge in the United Kingdom. He is the Director of the University's Autism Research Centre, and a Fellow of Trinity College...

 study of theory of mind
Theory of mind
Theory of mind is the ability to attribute mental states—beliefs, intents, desires, pretending, knowledge, etc.—to oneself and others and to understand that others have beliefs, desires and intentions that are different from one's own...

 in autism
Autism
Autism is a disorder of neural development characterized by impaired social interaction and communication, and by restricted and repetitive behavior. These signs all begin before a child is three years old. Autism affects information processing in the brain by altering how nerve cells and their...

, 61 children—20 of whom were diagnosed autistic under established criteria, 14 with Down's Syndrome and 27 of whom were determined as clinically unimpaired—were tested with "Sally" and "Anne".

In the test process, after introducing the dolls, the child is asked the control question of recalling their names (the Naming Question). A short skit is then enacted; Sally takes a marble and hides it in her basket. She then 'leaves' the room and goes for a walk. Whilst she is away, and therefore unbeknownst to her, Anne takes the marble out of Sally's basket and puts it in her own box. Sally is then reintroduced and the child is asked the key question, the Belief Question: 'Where will Sally look for her marble?'

For the children to 'pass' this test they must answer the Belief Question correctly, by indicating that Sally believes that the marble is in her own basket, continuous with her perspective although not with the child's own. If the child cannot take an alternative perspective, they will indicate that Sally has cause to believe—as they do—that the marble has moved. To pass, the children have to show that Sally has her own beliefs that may not correlate with reality.

Children under the age of four, along with most autistic children (of older ages), will answer "Anne's box," seemingly unaware that Sally does not know her marble has been moved.

The result of the Baron-Cohen study was that 23 of the 27 clinically unimpaired children (85%) passed the Belief Question, 12 of the 14 Down's Syndrome children (86%) passed and, by contrast, only 4 of the 20 autistic children (20%) passed the test.
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