What is learning progression and why is reliability important in rubrics used to measure it?

• A. A learning progression is a fixed test; reliability is optional
• B. A learning progression is a set of grades
• C. A learning progression traces how students' understanding develops over time; reliable rubrics ensure consistent scoring across tasks and raters
• D. A learning progression is irrelevant to assessment design

Answer: (C)

Learning progression refers to how students’ understanding or skills develop and become more sophisticated over time, often laid out as a sequence from simpler to more complex outcomes. When we measure growth along that path, the rubric used must be reliable, meaning scores are consistent no matter who scores or what similar task is used. This reliability is essential because it lets us trust that changes in scores reflect actual learning, not differences in raters or task design. If rubrics aren’t reliable, we can’t confidently track progress, compare growth across time, or make fair instructional decisions. So, the best answer captures both the idea of growth over time and the need for consistent, fair scoring across tasks and scorers. The other statements miss the point: a learning progression isn’t a fixed test or just a set of grades, and it certainly isn’t irrelevant to assessment design.