Measure your spatial construction abilities and visual-motor coordination.
The Block Design Assessment evaluates your ability to analyze and reproduce visual patterns — a key component of nonverbal intelligence. This type of task is found in major intelligence batteries worldwide because it reliably measures spatial visualization, perceptual organization, and visual-motor coordination.
Block design tasks were first introduced by Samuel Kohs in 1920 and later incorporated into the Wechsler Adult Intelligence Scale (WAIS), where they became one of the most reliable subtests. The task requires analyzing a visual pattern and breaking it down into component blocks — a process that engages the right parietal lobe and prefrontal cortex. Block design is considered one of the best single measures of nonverbal intelligence and is used in neuropsychological assessments to detect spatial processing deficits.
A target pattern is displayed. Analyze how the blocks are arranged.
Click cells in a grid to toggle them on/off, recreating the target pattern.
Patterns increase in complexity from 3×3 to 5×5 grids, with some requiring memory.
Both your accuracy and completion speed contribute to your score.
Your spatial construction ability relative to task difficulty
Visual-motor coordination — translating what you see into action
Perceptual organization — breaking complex wholes into component parts
Working memory involvement — especially on memory-based trials
Processing speed on spatial tasks
Block design tasks activate the right parietal lobe (spatial processing), dorsolateral prefrontal cortex (planning), and premotor areas (motor execution). Performance on block design is one of the most reliable predictors of overall nonverbal IQ in neuropsychological research.
Take the Block Design Assessment now and receive your personalized report with actionable insights.