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

Focus on demonstrating learning outcomes to a preset level of proficiency; separate demonstration of learning from behaviors like attendance or compliance.

Demonstration

A unit where students must reach 'mastery' on each learning target—through formative quizzes, revisions, and reassessments—before the unit is marked complete.

Misapplication

Setting an unattainable 'mastery' threshold, using mastery labels without clear rubrics, or denying final grades to students for minor unmet administrative requirements.

Consequence

Students receive clear pathways to reach required competence, reduced grade inflation, and grades that more closely reflect demonstrated learning when implemented properly.

Reversal

Point-accumulation systems where final grades depend on averaging scores across many low-stakes tasks rather than achieving proficiency on core objectives.

Boundary

Applies to discrete, teachable objectives and formative assessment cycles; may be impractical for ill-defined outcomes, performance art, or when external accreditation requires numeric averages.

Semantic Tension

Close to standards-based grading but emphasizes the binary or threshold notion of 'mastery' and typically more prescriptive remediation and retesting policies.

Synthesis

Mastery grading centers assessment on whether learners reach defined proficiency thresholds for specific objectives, using reassessment and exclusion of non-achievement penalties to reflect true competence.