An assessment concept defining how evidence of learning is collected, interpreted, and used for decisions. It governs measurement design, scoring, feedback, and reporting used to evaluate progress and attainment. It does not provide fair conclusions without alignment to objectives, consistent scoring, and attention to measurement error. It supports improvement and accountability by making performance observable and trackable over time. The concept is generally stable, though tools and standards for measurement evolve over time.

Principle

Organize accessibility assessment into explicit criteria and graded levels so judgments are reproducible, comparable, and tied to observable evidence rather than intuition.

Demonstration

A course materials rubric lists criteria such as alternative text quality, caption completeness, keyboard operability, and color-contrast thresholds; each criterion has descriptors for 'Exemplary', 'Meets', 'Partial', and 'Does Not Meet' with examples of evidence for each level.

Misapplication

Using a rubric as a checklist (marking any item as 'Meets' without evidence), creating overly vague level descriptors, or applying a rubric developed for websites directly to multimedia without adaptation.

Consequence

When applied correctly, rubrics produce consistent evaluations across reviewers, reveal specific remediation targets, and enable tracking of quality improvement over time.

Reversal

An unstructured subjective review or a binary pass/fail checklist produces inconsistent scores and obscures where improvements are needed.

Boundary

A rubric is an assessment instrument, not an implementation plan or substitute for real-user testing; it may exclude automated-only checks and is context-specific (requires adaptation for different content types).

Semantic Tension

Tension exists between a rubric's quantified score and qualitative accessibility narratives; rubrics compete with standards (which are prescriptive) and checklists (which are task lists) for evaluative authority.

Synthesis

A rubric turns accessibility standards and expert judgement into a repeatable, level-based scoring tool that clarifies what to measure, how to observe it, and what remediation is indicated for each score.