Reporting, Testimony, and Professional Ethics
Domain 8: Reporting, Testimony, and Professional Ethics
This domain tests whether you can communicate results accurately and defend them without becoming an advocate. Reports and testimony must separate measurement from interpretation and disclose limits.
Core rules
- A report should state purpose, scope, methods and standards, instrumentation and calibration, results, uncertainty, conclusions, and limitations. Appendices should carry raw data and calibration records.
- Distinguish measured values, modeled values, and professional judgment. State the metric, averaging time, location, and conditions for every result.
- Expert testimony must rest on reliable methods and specialized knowledge. Courts may consider testability, peer review, known error rates, and general acceptance, often associated with the Daubert framework.
- Ethics require honesty, objectivity, confidentiality, conflict disclosure, and correction of errors. Do not omit adverse data or testify outside your expertise.
- State uncertainty explicitly. A conclusion that a level exceeds a limit should be consistent with the uncertainty analysis.
Worked example
A report finds 56 dBA at a receptor against a 55 dBA limit, with +/-2 dB uncertainty. The defensible conclusion is that the result is above the numeric limit but does not demonstrate an exceedance beyond uncertainty. If a client asks you to write that the facility exceeds the limit, the ethical response is to refuse or to qualify the statement. The data may support further investigation, not a definitive finding.
Traps
Presenting modeled results as measured; hiding unfavorable data; overstating certainty; claiming credentials you do not hold; and letting the client draft the technical conclusions.