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
Episodic memory
Episodic memory domain - Average of 7 tests
We formed a composite measure of the cognitive domain episodic memory by converting raw scores on each cognitive test to z scores, using the mean and standard deviation of the cohort(s) at baseline visit, then averaging the z-scores to yield the composite.
The following 7 cognitive tests are used to compute this score:
| Test score | Z-score | Cognitive test |
|---|---|---|
| cts_wli | z_WLI | Word list |
| cts_wlii | z_WLII | Word list recall |
| cts_wliii | z_WLIII | Word list recognition |
| cts_ebmt | z_EBMT | East Boston immediate recall |
| cts_ebdr | z_EBDR | East Boston delayed recall |
| cts_story | z_Story | Logical memory I (immediate recall) |
| cts_delay | z_Delay | Logical memory II (delayed recall) |
Item level variables are available upon request.
NOTE: Every time a new participant completes a study baseline, values for ALL participants change slightly. Therefore it is essential that if participants are added to a data set, ALL values must be updated.
The variable is calculated if more than half the z-scores are non-missing.