Editors' Introduction to the Special Issue of the Journal of Transformative Education on Assessing Transformative Learning

Over 40 years ago, Jack Mezirow introduced the idea of transformative learning (TL) to the adult education community. Representing a profound shift in how one thinks and feels about one's self and the socio-cultural context in which one is embedded, transformative learning has since evolved to reflect numerous theoretical lenses and its framework continues to be extended and elaborated. As TL theory expands within different contexts and across different disciplines, particularly within postsecondary education, the term transformative learning is often employed with scant connection to the theoretical framework in which it was initially grounded. Learners and educators alike frequently describe learning experiences as transformative, yet little consensus exists around a definition of transformative leaning However, if the field is to continue to evolve theoretically, we cannot accept these claims of transformation at face value. The phenomenon must be measured in some manner. The field continues to struggle with several perennial issues related to assessment. This special issue of the Journal of Transformative Education seeks to address the need to wrestle with these underlying theoretical and conceptual issues by critiquing the state of the field, introducing new approaches to operationalizing the phenomenon, and advancing new trajectories for research. We approach this charge through two major threads explored through eight papers that represent Methodological Innovations and Cases of Methodological Application. We close this introduction to the Special Issue with key themes represented in the eight papers and recommendations for addressing the challenges of assessing the processes and outcomes of transformative learning.