What does the coding subtest on the WISC-IV measure?
Coding measures visual-motor dexterity, associative nonverbal learning, and nonverbal short-term memory. Fine-motor dexterity, speed, accuracy and ability to manipulate a pencil contribute to task success; perceptual organization is also important. Coding is a timed core Processing Speed subtest.
What does Coding subtest measure?
Regarding Coding: “In addition to processing speed, the subtest measures short-term visual memory, procedural and incidental learning ability, psychomotor speed, visual perception, visual-motor coordination, visual scanning ability, cognitive flexibility, attention, concentration, and motivation.
What is coding on IQ test?
Coding—the student matches and copies symbols that are associated with either objects (i.e., Coding A) or numbers (Coding B). This subtest is a measure of processing speed, short-term visual memory, mental flexibility, attention, and motivation. This subtest measures the student’s general fund of knowledge.
Is WISC-IV still valid?
The WISC-V is the most recent version of the WISC test, but older versions (the WISC-IV and the WISC-III) may still be given. A psychologist would determine which test would be appropriate for a child in that age range. Because an IQ test is different from a skills or achievement test, it is harder to study for.
What is the difference between coding and symbol search?
Coding, which requires children to draw symbols, is heavily influenced by grapho-motor demands. Children with poor handwriting or dysgraphia may struggle with this task. Symbol Search has less emphasis on motor output but requires rapid differentiation of abstract symbols.
What does each WISC subtest measure?
The WISC-V is actually made up of 10 subtests, yielding 5 scores, each one a summary measure of a certain ability. These are called Verbal Comprehension, Visual Spatial, Fluid Reasoning, Working Memory, and Processing Speed. Each Index Scale is comprised of two subtests that together make up the scale result.
What is perceptual reasoning on the WISC-IV?
Perceptual Reasoning Index: A measure of an individual’s ability to understand visual information and to solve novel abstract visual problems.
What is borderline genius?
In general, there is a small chance of being considered a borderline genius or better, maybe about 5% or so. Some scales state that scores in the 130 to 140 range might be considered gifted or near genius or other such labels while scores above 140 might be considered genius, but these tests and scales vary greatly.
How long are WISC scores valid?
Although the score is less than 6 months beyond what is considered current, the WISC-IV is no longer the same test that would be given because the child is now 17 years old and the WISC-IV is only appropriate for children through age 16 years and 11 months.
Is the WISC-IV reliable and valid?
Reliability for the WISC-IV is high with r = 0.97 for the FSIQ and r = 0.87–94 for the specific intelligence indices.
What is processing speed on WISC?
Processing speed on the WISC-IV is designed to measure how quickly one can complete simple, timed cognitive tasks using pencil and paper. The two subtests require visual scanning, grapho-motor output (writing), speed, flexibility, attention, and concentration among other things.
How is the WISC-IV processing speed index calculated?
The WISC-IV’s Processing Speed Index is calculated from the Coding and Symbol Search subtest scores. A supplemental subtest is Cancellation. These three subtests, described in the next paragraph, rely on rapid visual/motor analysis and output.
What is the WISC-IV’s cognitive proficiency index?
Scores for both the Working Memory and Processing Speed subtests make up the WISC-IV’s Cognitive Proficiency Index. These abilities are separate from the WISC-IV’s General Abilities Index, a measure of core intelligence derived from an individual’s Verbal Comprehension and Perceptual Reasoning Indices (verbal and nonverbal abilities).
What is the difference between the WISC-III and WISC–IV FSIQ?
The WISC–IV FSIQ is comprised of all 10 subtests that comprise the four index scores, including additional measures of working memory and processing speed.The WISC–III FSIQ included only one measure of processing speed and one measure of working memory in the FSIQ. The new indices are made up either of two or three subtests.
How many children are included in the WISC®-IV sample?
The WISC®-IV sample consisted of 2,200 children between the ages of 6:00 and 16:11 years. A total of 200 children were selected for each of the 11 age groups.