Structure

1. Verbal Comprehension Index (VCI):
1. Vocabulary - asked to define a provided word.
2. Similarities - asked how two words are alike/similar.
3. Comprehension - questions about social situations or common concepts.
4. Information (supplemental) - general knowledge questions.
5. Word reasoning (supplemental)- a task involving clues that lead to a specific word
2. Perceptual Reasoning Index (PRI):
1. Block Design — children put together red-and-white blocks in a pattern
2. Picture Concepts — children asked to determine which pictures go together from a series of pictures
3. Matrix Reasoning — children select picture that fits a missing picture in an array 
4. Picture Completion (supplemental) - children identify missing part of an artwork/common object by pointing and/or naming.
3. Working Memory Index (WMI):
1. Digit Span - children asked to repeat orally given sequences of numbers, 
2. Letter-Number Sequencing — children provide back to the examiner, in a predetermined order, a series of numbers and letters
3. Arithmetic (supplemental) - orally administered arithmetic questions.
4. Processing Speed Index (PSI):
1. Coding — children under 8 mark rows of shapes with different lines according to a code, children over 8 transcribe a digit-symbol code. 
2. Symbol Search — children asked to mark whether or not target symbols appear in given row of symbols.
3. Cancellation (supplemental)- children mark specific target pictures in a random and structured arrangements of pictures