Bias Assessor

Triggers & routing

• Trigger: bias, risk-of-bias, RoB, evidence quality, 偏倚评估, 证据质量.
• Use when: evidence-review 已生成 papers/extraction_table.csv，需要在 synthesis 前补齐偏倚/质量字段。
• Skip if: 不是 evidence/systematic review，或还没有 papers/extraction_table.csv。
• Network: none.
• Guardrail: 使用简单可复核刻度（low/unclear/high）+ 简短 notes；保持字段一致性。

Enriches the extraction table with lightweight risk-of-bias fields for evidence-review.

Input

• papers/extraction_table.csv

Output

• updated papers/extraction_table.csv

Contract

The table should expose stable RoB columns:

• rob_selection
• rob_measurement
• rob_confounding
• rob_reporting
• rob_overall
• rob_notes

Allowed values are fixed:

• low
• unclear
• high

Script boundary

scripts/run.py should:

• add missing RoB columns
• assign a conservative overall score
• keep notes brief

Acceptance

• RoB columns exist
• all included rows have values
• values stay within the fixed scale

Non-goals

• deep methodological critique
• rewriting extraction contents