Activity-Level Evaluation
Definition
Evaluation directed at competing accounts of actions, using relevant circumstances and data. An activity question concerns actions, such as direct contact or transfer through an intermediary. Identifying a DNA contributor does not establish the activity by which their DNA arrived.
- Context
- Evidence interpretation
For example, direct handling and transfer through another item are competing activities that cannot be distinguished solely by naming a DNA contributor.
Keep contributor and activity propositions separate.
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...
- Probabilistic Genotyping
- Software-based interpretation of complex DNA electropherograms using continuous statistical models (e.g. STRmix, TrueAllele, ArmedXpert). Generates a likelihood ratio for complex mixtures previously...
- Sub-Source Proposition
- A proposition about the genetic contribution of a person, distinct from the material or activity. A contributor proposition concerns whose genetic material...
- Transposed Conditional
- The error of confusing the probability of findings under a proposition with that proposition’s probability given the findings. The latter also depends...