ROS, MAP, MARS, Clinical Core, LATC
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 score||z-score||cognitive test|
|cts_pmat||z_PMat||progressive 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.