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Table 1 WISC-III subtests and abilities measured

From: A solution to limitations of cognitive testing in children with intellectual disabilities: the case of fragile X syndrome

Subtest

Abilities

Verbal

 

 Information

Range of knowledge, long term memory

 Similarities

Abstract reasoning, concept formation

 Arithmetic

Numerical reasoning and computation

 Vocabulary

Word knowledge

 Comprehension

Practical knowledge, social judgment

 Digit Span

Auditory short-term memory

Performance

 

 Picture Completion

Visual perception, attention to detail

 Coding

Visual–motor information processing

 Picture Arrangement

Nonverbal reasoning and sequencing

 Block Design

Spatial visualization and reasoning

 Object Assembly

Visual perception and organization

 Symbol Search

Scanning, matching, attention to detail