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Cognitive function is tested via a battery of 21 cognitive performance tests administered each year. Nineteen of these tests across a range of cognitive abilities are used to construct a global composite measure of cognitive function and separate summary measures of 5 cognitive domains. Eleven tests are used for diagnostic classification.
A composite measure of global cognitive function is derived from a battery of 19 cognitive performance tests.
|Global cognitive function||Global cognitive function - Average of 19 tests|
Summary measures of 5 cognitive domains are constructed from 19 cognitive performance tests.
|Episodic memory||Episodic memory domain - Average of 7 tests|
|Working memory||Working memory domain - Average of 3 tests|
|Semantic memory||Semantic memory domain - Average of 3 tests|
|Perceptual orientation||Perceptual orientation/visuospatial ability domain - Average of 2 tests|
|Perceptual speed||Perceptual speed domain - Average of 4 tests|
Individual cognitive performance test scores
|MMSE||Mini-Mental State Exam, 30 item|
Estimated slopes of global cognition and cognitive domains
|Random slope of global cognition||Estimated slope from random effects model for global cognition|
|Random slope of episodic memory||Estimated slope from random effects model for episodic memory|
|Random slope of working memory||Estimated slope from random effects model for working memory|
|Random slope of semantic memory||Estimated slope from random effects model for semantic memory|
|Random slope of perceptual orientation||Estimated slope from random effects model for perceptual orientation|
|Random slope of perceptual speed||Estimated slope from random effects model for perceptual speed|
This data set is available in a subset of ROS and MAP participants and is created by the University of Washington.
The data set includes composite scores for memory, executive functioning, language, and visuospatial ability at the time of first Alzheimer’s disease diagnosis.