

Note: Picture Arrangement, Comprehension, and Object Assembly do not contribute to the Index Scores See also In addition to the Verbal and Performance IQ scores, the following four indices are derived. WAIS-III Subtests Grouped According to Indices
DIFFICULTIES ON DIGIT SPAN WAIS FREE
Optional post-tests include Digit Symbol - Incidental Learning and Digit Symbol - Free Recall. Object Assembly Visual analysis, synthesis, and construction Picture Arrangement Logical/sequential reasoning, social insight Matrix Reasoning Nonverbal abstract problem solving, inductive reasoning, spatial reasoning Performance Subtests Picture Completion Ability to quickly perceive visual detailsĭigit Symbol - Coding Visual-motor coordination, motor and mental speedīlock Design Spatial perception, visual abstract processing & problem solving Given Q1B3J2, place the numbers in numerical order and then the letters in alphabetical order) Letter-Number Sequencing attention and working memory (e.g. given the sequence of digits '123', reverse the sequence.) What is a guitar?)ĭigit span attention/concentration (e.g. Vocabulary The degree to which one has learned, been able to comprehend and verbally express vocabulary (e.g. In what way are an apple and a pear alike?) Similarities Abstract verbal reasoning (e.g. What does "Kill 2 birds with 1 stone" metaphorically mean?)Īrithmetic Concentration while manipulating mental mathematical problems (e.g. Who is the president of Russia?)Ĭomprehension Ability to deal with abstract social conventions, rules and expressions (e.g. ġ4 subtests of the WAIS-III Verbal Subtests Information Degree of general information acquired from culture (e.g. As the WAIS is developed for the average, non-injured individual, separate norms were developed for appropriate comparison among similar functioning individuals. Each subtest score is tallied and calculated with respect to non-normal or brain-damaged norms. Others employ the WAIS-R NI ( Wechsler Adult Intelligence Scale-Revised as a Neuropsychological Instrument), another measure published by Harcourt. For example, digit span may be used to get a sense of attentional difficulties. Some neuropsychologists use the technique on people suffering brain damage as it leads to links with which part of the brain has been affected, or use specific subtests in order to get an idea of the extent of the brain damage. Intelligence tests also are used in populations with psychiatric illness or brain injury, though some regard this use as controversial.
DIFFICULTIES ON DIGIT SPAN WAIS FULL
The Wechsler Abbreviated Scale of Intelligence (WASI) uses the vocabulary, similarities, block design and matrix reasoning subtests of the WAIS to provide an estimate of the full IQ scores. For persons under 16, the Wechsler Intelligence Scale for Children ( WISC, 6-16 yrs) and the Wechsler Preschool and Primary Scale of Intelligence ( WPPSI, 2 1/2-7yrs, 3mos) are used.Īn IQ score can be obtained without administering the verbal section of the test since each section yields its own score.Ī short, four-subtest, version of the battery has recently been released, allowing clinicians to form a validated estimate of verbal, performance and full scale IQ in a shorter amount of time. The WAIS-III measure is appropriate throughout adulthood and for use with those individuals over 74 years of age. In a normal distribution this IQ range (1σ above and below the mean) is where approximately 68% of adults would fall. The median full-scale IQ is centered at 100, with a standard deviation of 15.

WAIS-IV is currently undergoing national standardization and slated for release in late 2008. It is considered to have very strong reliability. WAIS-R was standardised in 1981 on a sample of 1,880 US subjects, ranging from 16 to 74 years of age, broken down into 9 different age groups. a composite, single full-scale IQ score based on the combined scores.The full scale IQ test is broken down into 14 sub tests, comprising the verbal (7 sub tests) and performance scales (7 sub tests). 4 WAIS-III Subtests Grouped According to Indices.
