Psychometric correlates of categorization: An exploratory study
A: Mean = 10, SD = 3 (for ages 16–69). Lower in older adults (normative decline). block design wais iv
is a core Perceptual Reasoning subtest on the WAIS‑IV. It is one of the most iconic, visuospatial tasks in cognitive assessment. middle tier = +1
*Exact bonuses vary slightly by item (see manual). Generally: Fastest tier = +3, middle tier = +1, slow but correct = 0 bonus. slow but correct = 0 bonus.