Cognitive Aging Index

Processing speed, working memory, attention, and inhibition. Retake monthly to track change.

20 questions~6 minutesScale: Cognitive Vitality (0–100)

Sample question

Which is the largest: 0.5, 0.55, 0.505, 0.51?

A0.5

B0.55

C0.505

D0.51

Framework

Processing Speed Index methodology; Wechsler-inspired tasks.

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