Introduction: Two kinds of error
Part I. Finding noise: Crime and noisy punishment ; A noisy system ; Singular decisions
Part II. Your mind is a measuring instrument: Matters of judgment ; Measuring error ; The analysis of noise ; Occasion noise ; How groups amplify noise
Part III. Noise in predictive judgment: Judgments and models ; Noiseless rules ; Objective ignorance ; The valley of the normal
Part IV. How noise happens: Heuristics, biases, and noise ; The matching operation ; Scale ; Patterns ; The sources of noise
Part V. Improving judgments: Better judges for better judgments ; Debiasing and decision hygiene ; Sequencing information in forensic science ; Selection and aggregation in forecasting ; Guidelines in medicine ; Defining the scale in performance ratings ; Structure in hiring ; The mediating assessments protocol
Part VI. Optimal noise: The costs of noise reduction ; Dignity ; Rules or standards?
Review and conclusion: Taking noise seriously
Epilogue: A less noisy world
Appendix A: How to conduct a noise audit
Appendix B: A checklist for a decision observer
Appendix C: Correcting predictions.