Mary is Professor of Educational Assessment at IOE, UCL’s Faculty of Education and Society. She has over 20 years’ experience teaching including curriculums for education practice and policy, education history and testing and assessment practice. Her doctoral candidates focus on a wide range of topics related to assessment including: social media representation, ethics and anxiety in testing, and comparative judgement. Her current research is anchored in assessment with specialist expertise in student experiences, public understanding of testing, the ethics of assessment and currently, what generative AI might mean to all our assessment futures. She is currently co-authoring the TIMSS23 report for England and starting work on the national PISA25 reporting for Wales and Northern Ireland.

She sits on the Research Board for Qualifications Wales, for the NCFE, for AQA Exam Board's Research Department and is the co-convenor of the British Educational Research Association's Special Interest Group (SIG) for Curriculum and Assessment.