Albert Weideman is Professor of Applied Language Studies and Research Fellow at the University of the Free State. He is a rated researcher with the National Research Foundation in South Africa, has published more than ninety articles in accredited national as well as in international journals, and is the author of several books. These include Beyond expression: A systematic study of the foundations of linguistics (Van Schaik/Paideia Press 2009) and Responsible design in applied linguistics: Theory and practice (Springer, 2017). He was the main editor of Assessing academic literacy in a multilingual context: Transition and transformation (2021, Multilingual Matters), and co-editor of and contributor to Ethics and context in second language testing: Rethinking validity in theory and practice (Routledge, 2024). He has recently contributed chapters to Toegepaste taalkunde in Afrikaans (2022), to the third edition of Kontemporêre Afrikaanse taalkunde (2024; both from Van Schaik), and to a forthcoming volume in the Cambridge University Press series Studies in Language Testing (SILT) on Learning about assessing language: a matter of literacy or competency development? (Eds. B. Baker & L. Taylor).

His prime interests lie in developing a theory of applied linguistics and in analysing the philosophical foundations of the field. He is also an expert language tester. The tests he has designed or has helped to develop have been used in tertiary institutions in South Africa, Vietnam, Australia, Namibia, Singapore, Belgium and the Netherlands. He is the founder, former CEO and current chairperson of the Inter-institutional Centre for Language Development and Assessment (ICELDA), a formal partnership of three South African universities.