Invalid Result
Definition
A test result failing required performance or control conditions. Screening can guide further examination while allowing alternative causes. Do not report invalid as negative or presumptive as certain identification. Apply the assay’s controls and decision rules to the result actually obtained.
- Context
- Result categories
For example, a failed required control can prevent interpretation of a test as negative even when no target signal was recorded.
Related terms
- Confirmatory Role
- A validated interpretive role of a more specific method, not a claim of infallibility. Specify what target or proposition it addresses and...
- Presumptive Result
- A screening finding indicating a possibility while allowing alternative causes. An invalid result instead fails a required condition for the method’s intended...
- Sample Prioritisation
- A documented choice of examinations directed at relevant questions and competing explanations. Whole-item recovery can permit controlled later sampling where suitable. More...
- Semenogelin
- Semenogelin is a seminal-associated protein targeted by some forensic biological assays. A test result is interpreted using the method’s specificity, sensitivity, controls...