zephyr
UK Wizardcel
★★★
- Joined
- Jul 22, 2021
- Posts
- 3,280
IQ = Mental age / Chronological age * 100
What Index Scales Measure
The five Index Scales (which are averaged together to provide the Full-Scale IQ score) measure the following abilities:
- Verbal Reasoning: Knowledge of words and being able to apply them – verbal concept formation, reasoning, and expression
- Visual Spatial: Seeing visual details, understanding spatial relationships and construction ability, understanding the relationship between parts and a whole, and integrating visual and motor skills
- Fluid Reasoning: Seeing the meaningful relationship among visual objects and applying that knowledge using the concept
- Working Memory: Demonstrating attention, concentration, holding information in mind and being able to work with information held in mind; this includes one visual and one auditory subtest
- Processing Speed: Speed and accuracy of visual scanning and identifying visual objects, short-term memory, and visual-motor coordination