Short biographies of the European Rasch Research and Teaching group running the Introductory Rasch Measurement Workshop (7-9 October 2019, Site CLE – Epalinges)

Short biographies of the European Rasch Research and Teaching group running the Introductory Rasch Measurement Workshop

(7-9 October 2019, Site CLE – Epalinges)


Alan Tennant BA, PhD, DM (honoris causa)

Appointed to the Chair of Rehabilitation Studies at Leeds in 2000, he retired with Emeritus status in June 2014. Holding an Adjunct Chair at the University of Western Australia until 2018, he also held an appointment as Senior Advisor with Swiss Paraplegic Research, Switzerland, together with a permanent visiting professorship at the University of Luzern, until the end of 2018. He has authored over 250 peer reviewed papers including 120 papers applying the Rasch measurement model in health outcomes.

He is currently a member of the TONiC study group, one of the largest longitudinal studies in neurological disorders in the UK, currently recruiting those with Multiple Sclerosis (>5000 baseline questionnaires returned) and those with Motor Neurone Disease (>600 baseline questionnaires returned). Using the Wilson and Cleary (W&C) model ‘linking clinical variables to health related quality of life’ as a framework for hypothesis testing, the ordinal data from Patient Reported Outcome Measures that are included in a questionnaire pack are all transformed to interval-scaled latent estimates though the use of the Rasch model, for use in Path models based on the W&C model.      


Åsa Lundgren Nilsson, PhD, Associate Professor Rehabilitation medicine

Åsa Lundgren Nilsson graduated as an occupational therapist from Umeå University (Sweden) in 1988 and has been research active at the Sahlgrenska University Hospital in Gothenburg since 1990. She defended her PhD thesis in Clinical Neurosciences, at the Department of Rehabilitation Medicine at the University of Gothenburg (now Neuroscience and Physiology) in June 2006 which formed part of a larger outcome and Rasch measurement collaboration between different rehabilitation facilities in Europe.
Åsa divides her time between being the CEO of the Neuroscience department at the Sahlgrenska University hospital (the Neurosurgery, Neurology, Clinical Neurophysiology and Rehabilitation medicine clinics) and the University of Gothenburg where she is an assistant research team leader for a group of multi professional researchers in Rehabilitation Medicine.

Her current research interests are in outcomes, evaluation and research methods in rehabilitation, with special interest in Stroke, TIA, TBI, Parkinson Disease, RA and Stress.

She is also part of the European Rasch Teaching Group based at Leeds in the UK, and runs Rasch Training Workshops. She has extensive collaborations involving the application of Rasch models with colleagues in the UK, New Zealand, South Africa, Norway, Australia and elsewhere in Sweden. Åsa has strong collaborations in two of the major centers for research at the University of Gothenburg; GPCC - University of Gothenburg Centre for Person-Centred Care and the Stroke Center West (SCW).


Dr. Maren Boecker

Maren Boecker is a clinical psychologist. She is working as a senior researcher and lecturer at the Institute for Medical Psychology and Medical Sociology, at the RWTH Aachen University, Germany. In 2000, being still a student, she came acquainted with the Rasch measurement model (RM) in Chicago. Recognizing the RM’s potential for improving scale development and measurement in Health Sciences, she has continuously applied the RM in her own work since then. Her research focuses on measurement of change in clinical assessment, test equating and on the development and evaluation of clinical assessment instruments (e.g. assessment of depression and activities of daily living). She is member of the RehaCAT study group aiming at developing computer adaptive tests (CAT) for clinical rehabilitation.  CAT offers the great opportunity to reduce assessment burden for both, the patients as well as the clinicians, while maintaining a high measurement precision. In addition, Maren Boecker is co-editor of the open-access test platform PSYCHOMETRIKON providing German-speaking assessment instruments.


Dr. Thomas Salzberger

Thomas Salzberger is a senior lecturer at the Institute for Statistics and Mathematics, at the WU Vienna (Vienna University of Economics and Business). He also teaches at various universities of applied science and works as a consultant. He received a doctorate in 1998 on the comparison of traditional test theory and Rasch measurement for assessing cross-cultural measurement equivalence. In 2008, he completed the habilitation on an Alternative Framework for the Measurement of Latent Variables in Marketing Research. He focusses on the application of the Rasch model for measurement in the social sciences (e.g., consumer behaviour, international marketing, health) and the fundamental underpinnings of the model and its relationship to metrology.


His work has been published for example in the Journal of Business Research, Frontiers in Quantitative Psychology and Measurement, Advances in International Marketing, International Marketing Review, Journal of Advertising, European Journal of Marketing, The Journal of the American Dental Association, and Health and quality of life outcomes. He is in charge of the MBC – Matilda Bay Cub discussion list on measurement based on the Rasch Model for measurement.


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