Skip to content

Analytical Agreement

Definition

Samples were not distinguished by the specified methods and comparison criteria. Agreement and failure to discriminate must be described at the method’s actual resolution. An undifferentiated result does not automatically identify one source.

Context
Comparison reporting

For example, two samples can agree under a selected measurement while a more discriminating suitable method might still distinguish them.

Equally, an inconclusive result is not affirmative evidence that sources differ.

Related terms

Likelihood Ratio
The probability of observations under one specified proposition divided by their probability under another, conditional on the stated information. A likelihood ratio...
Source-Level Proposition
A proposition about the origin of material. Example: 'The DNA profile originated from the suspect' versus 'The DNA profile originated from an...
Standard Error
Uncertainty measure for an estimate under a sampling model, distinct from sample standard deviation. It differs from the spread of individual observations...

Explained in