Assessment bias and unfair grading
Operational Before 12 After 6Markers apply different standards, or favour some learners through personal bias, so results do not reflect ability and learners are treated unfairly.
Who or what is affected: Learners, assessors and the credibility of qualifications
Causes
Subjective judgement, unclear criteria and pressure to meet pass targets.
Consequences
Unfair results, appeals, loss of learner trust and possible loss of accreditation.
Existing controls
- Marking criteria are written for each assessment.
- Grades are checked by the course lead at the end of each cohort.
Control gaps
Moderation covers only a few scripts, so systematic bias may go unseen.
Additional controls
- Prevent: Require second marking and moderation of a sample for every high stakes assessment.
- Detect: Compare pass rates and grade spreads across markers and learner groups each term.