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A practical treatment of sensitivity analyses in activity level evaluations
Duncan Taylor1, Bas Kokshoorn2, Christophe Champod3
1Forensic Science SA, GPO Box 2790, Adelaide, SA 5001, Australia; School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia.
Forensic Science International
|January 26, 2024
Summary
Sensitivity analysis is crucial for evaluating forensic observations. This study simplifies its application, offering practical guidance and tools for assessing robustness in forensic evaluations.
Area of Science:
- Forensic Science
- Probability Theory
- Statistical Analysis
Background:
- Activity level propositions are increasingly used in forensic evaluations.
- Sensitivity analysis is a key method for interrogating the robustness of these evaluations.
- Existing literature often lacks practical guidance on applying sensitivity analysis theory.
Purpose of the Study:
- To provide simplified, practical examples of conducting sensitivity analyses in forensic evaluations.
- To guide users on identifying when an evaluation is sensitive to data, knowledge, or assumptions.
- To offer insights into interpreting and reporting sensitivity analysis outcomes.
Main Methods:
- Demonstration of simplified sensitivity analysis procedures.
- Explanation of how to identify data, knowledge, or assumption sensitivity.
- Guidance on interpreting and reporting results.
Main Results:
- Provided simplified examples of sensitivity analysis application.
- Outlined conditions under which evaluations are sensitive.
- Offered methods for interpreting and reporting results.
Conclusions:
- Sensitivity analysis is a vital tool for ensuring the reliability of forensic evaluations.
- Practical application of sensitivity analysis can be simplified with clear guidance and tools.
- This work enhances the practical implementation of sensitivity analysis in forensic science.
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