High points rely on speed, which penalizes individuals with motor slowing (e.g., arthritis, Parkinson’s) or anxiety—even if spatial reasoning is intact. This risks confounding processing speed with visuospatial ability.
The test uses 17 designs of increasing difficulty with time limits ranging from 1.5 to 4 minutes. block design test scoring
May suggest difficulties with visual integration or motor coordination. Significant impairment is often linked to conditions like Alzheimer's disease , stroke, or traumatic head injury. High points rely on speed, which penalizes individuals
The transition from a physical performance to a final intelligence metric follows a structured path: May suggest difficulties with visual integration or motor
The raw score is converted into a scaled score (ranging from 1 to 19) using age-normed tables. This allows clinicians to compare an individual’s performance to their peers. Average Range: 8 to 12. Strength: 13 or above. Relative Weakness: 7 or below. 2. Behavioral Observations and Qualitative Scoring
Differentiates between slow success, quick success, and partial solutions. Useful for detecting subtle deficits in constructional ability.