Variable Details
- Random slope of global cognition (demographics)
- Random slope of episodic memory (demographics)
- Random slope of working memory (demographics)
- Random slope of semantic memory (demographics)
- Random slope of perceptual speed (demographics)
- Random slope of visuospatial ability/perceptual orientation (demographics)
- Random slope of global cognition (demographics + pathology)
- Random slope of episodic memory (demographics + pathology)
- Random slope of working memory (demographics + pathology)
- Random slope of semantic memory (demographics + pathology)
- Random slope of perceptual speed (demographics + pathology)
- Random slope of visuospatial ability/perceptual orientation (demog + pathology)
Available Studies
ROS, MAP, MARS, Clinical Core, LATC
Categories
Cognition
Perceptual speed
Perceptual speed domain - Average of 4 tests
We formed a composite measure of the cognitive domain perceptual speed 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 4 cognitive tests are used to compute this score:
| Test score | Z-score | Cognitive test name |
|---|---|---|
| cts_sdmt | z_SDMT | Symbol digits modality test (oral) |
| cts_nccrtd | z_NCcrtd | Number comparison |
| cts_stroop_cname | z_cname | Stroop color naming |
| cts_stroop_wread | z_wread | Stroop word reading |
Item level variables are available upon request.
Note: The variable is calculated if more than half the z-scores are non-missing.