Variable Details

Available Studies
ROS, MAP, MARS, Clinical Core, LATC
Scaled? 
Scaled
Variable Type 
Longitudinal
Variable Name 
cogn_po
Categories
Cognition

Visuospatial ability/perceptual orientation
Visuospatial ability/perceptual orientation domain - Average of 2 tests

Visuospatial Ability Domain

We formed a composite measure of the cognitive domain visuospatial ability, aka perceptual orientation, by converting raw scores on each cognitive test to z scores, using the mean and standard deviation of the cohort, and then averaging the z-scores to yield the composite.

The following 2 cognitive tests are used to compute this score:

Test scoreZ-scoreCognitive test name
cts_lopairz_LOpairLine orientation
cts_pmatz_PMatProgressive matrices (16 items)

Item level variables are available upon request.

Note: The variable is calculated if more than half the z-scores are non-missing.


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