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HEWED

The instrument, not the pitch

See the measurement actually run.

The browser-only assessment demo selects from 16 illustrative items using a 2PL information function and reports an unnormed estimate with an uncertainty band. It does not produce a validated CAI score.

The Cognitive Autonomy Index is a research instrument in validation design. It is separate from Hewed coaching, and the two share no data. Your answers here stay in this page and are not stored or sent. Hewed is a research and self-reflection tool; it does not diagnose or treat any condition.

Working demo · runs offline · separate from coaching

A live scoring demonstration.

Eight reasoning items, chosen adaptively. Each answer updates a Bayesian ability estimate, and the next item is selected for information at the current estimate. The parameters are illustrative and the output is not a validated CAI score.

Adaptive selection
Each item is picked for maximum information at your current estimate.
Honest error bars
Every score carries a confidence band. It never claims certainty.
Trajectory-first
One point is nearly meaningless. The unit that matters is change over time.
No verdicts
Illustrative calibration, not a diagnosis. The math is real; the item norms are a placeholder.
The rigor behind it
Validation architecture

The measurement model, how change is told apart from noise, equating, longitudinal invariance, fairness testing, and where the neural anchor stops.

Read the method→
The construct
Cognitive debt and reasoning autonomy

The flagship paper: what reasoning autonomy is, why it is now measurable, and what the instrument can and cannot claim.

Read the paper→