What counts as credible evidence for 'impact on learning' in Task 4?

• A. Converging evidence from multiple sources (tasks 1-3), such as improved assessment scores, work quality, and observed growth in thinking.
• B. A single anecdote from a parent.
• C. Only attendance data.
• D. A teacher's impression.

Answer: (A)

Credible evidence of impact on learning comes from converging data across multiple sources and moments in time. When you bring together different indicators from Tasks 1–3—improved assessment scores that show measurable gains, work quality that reflects a deeper understanding and skill development, and careful observations of students’ growth in thinking—you create a well-supported, triangulated picture that instruction affected learning. This breadth matters because it shows learning across contexts and for a range of students, not just a single instance.

Relying on a single anecdote from a parent lacks breadth and objectivity, while attendance data speaks to presence rather than learning. A teacher’s impression, though valuable, is subjective and needs backing by concrete data. So the strongest evidence comes from multiple, corroborating indicators that align with learning goals and demonstrate actual growth.