Cognitive Processing Clusters from the Woodcock-Johnson Psycho-Educational Battery, III:
1. Auditory processing: discrimination, comprehension & synthesis of sounds & patterns, closure, figure-ground, auditory attention
2. Short-term auditory memory: apprehension & immediate use of information gained through the auditory channel
3. Visual processing: perceiving, analyzing, and thinking with visual patterns, spatial configurations, designs, spatial orientation; visual recognition & memory
4. Processing speed: ability to perform relatively automatic cognitive tasks quickly or under the pressure of timed conditions
5. Comprehension-knowledge (or language): breadth & depth of background/cultural knowledge & experience; comprehension of communication & the types of reasoning based upon previously learned procedures, or "crystallized intelligence"; vocabulary, word retrieval
6. Fluid reasoning: capability to reason with qualitative information; conceptualization; rule formation, mathematical logic; drawing inferences from relationships and comprehending implications; creative & abstract problem solving; transfer; transformation & extension
7. Long-term retrieval: storage of information & fluency of retrieval through association later
Three more clusters combining specific tests above include Verbal Ability, Thinking Ability, and Cognitive Efficiency
Another test of intelligence is the Wechsler Adult Intelligence Scale, IV. Besides an overall score, Full Scale IQ, it provides information on Verbal and Performance abilities, with Index scores.
Verbal: Included in the Verbal score is verbal comprehension, the ability to use verbal skills in reasoning and solving problems, and the capacity to learn verbal material. Clusters: Verbal I.Q., Verbal Comprehension and Working Memory.
Performance: The Performance score reflects the ability to use perceptual skills in nonverbal reasoning, visually based thinking (visual-spatial relations, logical analysis of patterns, visual analogies), and the ability to process visual material efficiently (timed visual-motor tasks). Clusters: Performance I.Q., Perceptual Reasoning and Processing Speed.