A qualified psychologist interprets the WAIS-IV by looking beyond the FSIQ. For instance, a person might score in the 130s (Gifted) for Verbal Comprehension but in the 80s (Low Average) for Processing Speed. This "scatter" points to specific cognitive profiles, such as twice-exceptionality (2e).
The WAIS-IV replaced the WAIS-III, offering several improvements:
This measures how quickly and accurately your brain processes simple or routine visual information. Scanning a group of symbols to find a match.
Motor-skills issues, physical tremors, or age-related slowing can lower scores on the Processing Speed and Perceptual Reasoning indices, misrepresenting true abstract reasoning capacity.
Ability to understand, learn, and retain verbal information; crystallization of knowledge. Similarities, Vocabulary, Information
Wechsler Adult Intelligence Scale—Fourth Edition (WAIS-IV)