Tracking

Tracking measures smooth pursuit — the ability to predict and follow a moving target with your hand.

A circle traces a complex path across the field. Your job: keep your cursor (or finger) inside it for as much of the duration as possible.

Reactive chasing fails — by the time you react, the target has moved. The skill is anticipating the path and leading the target.

Smooth pursuit is one of the cleanest measures of cerebellar and prefrontal coordination; it declines early in many neurological conditions.

Each test is constructed using Item Response Theory (IRT) and Classical Test Theory (CTT) to ensure reliable measurement of knowledge and ability across different difficulty levels.

Questions undergo rigorous review including difficulty calibration, discrimination analysis, and distractor effectiveness evaluation to maintain high assessment quality.

1. A circle moves in a continuous path.
2. Keep your cursor or finger inside the circle.
3. Anticipate the path — don't chase reactively.
4. Score = percentage of time on target.