Self-Directed PD Resources

Dylan Wiliam

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Dylan Wiliam

In a varied career, Dylan Wiliam has taught in urban public schools, directed a large-scale testing program, served a number of roles in university administration, including Dean of a School of Education, and pursued a research program focused on supporting teachers to develop their use of assessment in support of learning.

Dylan is well known for a major review of the published research evidence on formative assessment which he co-authored with Paul Black in 1998, titled Inside the Black Box. Since that time, Dylan has worked with groups of teachers and leaders all over the world on the topic of developing formative assessment practices. He has written several publications and professional articles.

AAC Special Event – February 2015

Principled Curriculum and Assessment Design

While we often think of curriculum as the provincially mandated Program of Studies, perhaps the most important part of curriculum design takes place on a daily basis in classrooms as teachers translate curriculum into lessons and assessments that support and engage learners.

Video: Dylan Wiliam – Clarifying Validity

Dylan Wiliam – Clarifying Validity

Assessment is a process of collecting evidence and making inferences. Validity is not a property of the test, but rather of the conclusions one makes.

Video: Dylan Wiliam – Reliability and Measurement Error

Dylan Wiliam – Reliability and Measurement Error

Measurement error is present in all assessments. No single score should be viewed as an absolute. When variation is present, seek additional sources of assessment evidence.

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