Evaluates nonverbal fluid reasoning, spatial processing, and visual-motor integration. Standard subtests include Block Design , Matrix Reasoning , and Visual Puzzles .
What it measures: How quickly you can look at simple information and make a decision. The task: Drawing a symbol under a matching number as fast as you can for two minutes. Real life: This is your mental tempo. How fast you react, fill out forms, or finish mundane tasks. wais-iv
Assesses the capacity to hold and mentally manipulate information. It primarily uses Digit Span and Arithmetic . The task: Drawing a symbol under a matching
The is the world’s most widely used instrument for assessing the intellectual abilities of adults and older adolescents aged 16 to 90. Released in 2008 by Pearson Assessments, it moved away from the traditional "Verbal vs. Performance" IQ model in favor of a more nuanced four-index structure that aligns with modern theories of cognitive science. 1. Structure and Scoring Assesses the capacity to hold and mentally manipulate
This index measures the speed of mental processing and fine motor coordination. It is sensitive to neurological deficits and anxiety.
Published in 2008 by Pearson (David Wechsler), the WAIS-IV is designed to measure cognitive ability in individuals aged .