Verbal subtests
Information - Degree of general information acquired from culture (e.g. Who is the president of Russia?)
Comprehension - Ability to deal with abstract social conventions, rules and expressions (e.g. What does "Kill 2 birds with 1 stone" metaphorically mean?)
Arithmetic - Concentration while manipulating mental mathematical problems (e.g. How many 45c. stamps can you buy for a dollar?)
Similarities - Abstract verbal reasoning (e.g. In what way are an apple and a pear alike?)
Vocabulary - The degree to which one has learned, been able to comprehend and verbally express vocabulary (e.g. What is a guitar?)
Digit span - attention/concentration (e.g. given the sequence of digits '123', reverse the sequence.)
Letter-Number Sequencing - attention and working memory (e.g. Given Q1B3J2, place the numbers in numerical order and then the letters in alphabetical order)
Performance subtests
Picture Completion - Ability to quickly perceive visual details
Digit Symbol/Coding - Visual-motor coordination, motor and mental speed
Block Design - Spatial perception, visual abstract processing & problem solving
Matrix Reasoning - Nonverbal abstract problem solving, inductive reasoning, spatial reasoning
Picture Arrangement - Logical/sequential reasoning, social insight
Symbol Search - Visual perception, speed
Object Assembly - Visual analysis, synthesis, and construction
Optional post-tests include Digit Symbol - Incidental Learning and Digit Symbol - Free Recall.
