Skill assessment
Confidence correlates poorly with competence in both directions, and self-assessment is least reliable at the extremes. Useful assessment observes performance on representative work.
Method
- Assess on realistic tasks. Work resembling what the person will actually do, since abstract puzzles measure something else (see technical-interviews).
- Watch the process, not just the result. How someone approaches an unfamiliar problem predicts future performance better than whether they solved this one.
- Probe the boundary. Where their knowledge stops and whether they recognise it, since knowing what you do not know is the most transferable skill.
- Discount confidence. Fluent explanation and correct explanation are different, and confidence is often inversely related to depth in novices.
- Use multiple signals. A single assessment is noisy, and independent observations reduce the error (see agent-ensemble-voting).
- Assess against the level needed, not against yourself. The question is whether they can do this work, not whether they match your approach.
- Give the assessment back. An evaluation that never reaches the person cannot help them improve (see feedback-for-learning).
Boundaries
Assessment predicts imperfectly, and interview performance correlates loosely with job performance. Assessing people has fairness and legal implications in employment contexts (see agent-people-ops-desk). Self-assessment is unreliable and needs external calibration.