Measuring 5 domains through 9 tasks
BrainTypeIQ measures the five CHC-based domains of Gc, Gf, Gv, Gwm, and Gs through 9 tasks.
| Domain | Tasks | What they read |
|---|---|---|
| Gc (crystallized intelligence) | Vocabulary (Antonyms) / Analogies | Depth of word meaning / relationship reasoning through words |
| Gf (fluid reasoning) | Matrix Reasoning / Figure Weights | Rule discovery in figure patterns / logical and quantitative reasoning |
| Gv (visual-spatial processing) | Paper Folding / Visual Puzzles | Spatial transformation through folding and unfolding / visual integration of parts and wholes |
| Gwm (working memory) | Computation Span / Visual Reversal | Simultaneous calculation and holding / reverse-order manipulation of visual information |
| Gs (processing speed) | Symbol Search | Speed and accuracy of visual matching |
Why use two tasks for one domain? With only one task, the result can lean too much toward compatibility with that task format. For example, if Gf were read only through Matrix Reasoning, inductive pattern discovery would be visible, but reasoning that holds conditions and derives an answer would be harder to see. Looking at the same domain from different angles makes the result easier to read.
Why these tasks are used in each domain
Gc: Vocabulary (Antonyms) / Analogies
Both "knowing" and "using" words are read.- Vocabulary (Antonyms): a format for reading precision of word meaning and semantic discrimination. Vocabulary tasks are relatively stable indicators of depth of verbal knowledge even when the format changes across synonyms, antonyms, or definitions.
- Analogies: a format for seeing the relationship structure between words and applying it to another pair. It uses verbal knowledge (Gc), but also includes processing close to reasoning (Gf).
Gf: Matrix Reasoning / Figure Weights
"Seeing the rule" and "deriving the answer" are different processes.Matrix Reasoning is a typical inductive reasoning task represented by formats such as Raven-style progressive matrices. It reads the ability to find patterns in several directions and integrate them. Figure Weights is a deductive and quantitative reasoning task that derives an answer while holding relationships among conditions.
Even within fluid reasoning, finding a rule in front of you and moving toward an answer from given conditions place load in different ways.
Gv: Paper Folding / Visual Puzzles
Following transformation and assembling parts create different loads.Paper Folding tracks spatial transformation through folding and unfolding. Visual Puzzles reads the process of building a whole from parts.
Both relate to visual-spatial processing, but Paper Folding places more load on holding the flow of transformation, while Visual Puzzles places more load on finding the correspondence between parts and the whole.
Gwm: Computation Span / Visual Reversal
Working memory is read through both numerical-verbal and visual routes.Computation Span is a dual task that requires calculating while remembering the results. In working-memory research, this kind of complex span task has been used to measure working-memory capacity.
Visual Reversal is a reverse-order task in the visual modality. It reads the ability to hold seen positions and order, then manipulate them in reverse, through a route different from auditory-verbal tasks such as Digit Span.
Gs: Symbol Search
There is a reason processing speed is read through one task.Symbol Search is a representative processing-speed task that repeats visual matching without relying on meaning. BrainTypeIQ uses one Gs task because processing speed is especially sensitive to time pressure and administration conditions.
Device performance, screen size, input method, network condition, and surrounding environment can affect the result. BrainTypeIQ therefore prioritizes stable measurement through one core task format first.
Why the tasks are not the same as WAIS tasks
An in-person battery needs tasks that are not only theoretically useful, but also stable to administer face to face. Administration time, examiner procedure load, material management, examinee fatigue, and consistency of standardization all matter.
Online administration has different constraints. Device differences, variability in response environment, identity confirmation, and ease of interruption become more important. For example, WAIS Block Design requires physical manipulation and cannot be administered online in the same form. WAIS Vocabulary is often based on free responses, while multiple choice is more consistent to score online.
Even when the same ability is being measured, the suitable task form differs between in-person and online settings. What matters is not whether the task looks the same, but how stably the target ability can be captured in that environment.