Dr George Leckie
Senior Lecturer in Social Statistics
- Multilevel modelling
- Longitudinal data analysis
- Dyadic data analysis
- Value-added models
- Applications of social statistics in education
I am a Senior Lecturer in Social Statistics at the Centre for Multilevel Modelling (CMM) and Graduate School of Education, University of Bristol, UK. I also hold a status-only Associate Professor position at the Graduate Department of Applied Psychology and Human Development, University of Toronto, Canada. My methodological interests are in the application and dissemination of multilevel and other latent variable models to analyse educational and other social science data. My substantive interests include: statistical properties of school performance indicators and their associated publication in league tables; value-added models (VAMs) for estimating school and teacher effects on student achievement; and statistical modelling of rater effects on test scoring. I currently hold an ESRC Future Research Leaders grant and have previously been a co-investigator on several other ESRC grants. My research has been published in various international journals, including: Journal of the Royal Statistical Society, Series A; Journal of Educational and Behavioral Statistics; Journal of Educational Measurement; and Journal of Statistical Software. I have taught over 40 multilevel modelling short courses across UK, Europe, Australia and US.
My methodological interests are in the application and dissemination of multilevel and other latent variable models to analyse educational and other social science data. Particular areas of interest include multilevel analysis of non-hierarchical data (e.g., cross-classified models, multiple membership models), longitudinal data analysis (e.g., growth-curve models, latent class growth analysis, growth mixture models, dynamic models), and dyadic data analysis (e.g., actor-partner interdependence model, social relations model).
My substantive interests in educational research include: statistical properties of school performance indicators and their associated publication in league tables; value-added models (VAMs) for estimating school and teacher effects on student achievement; statistical modelling of rater effects on test scoring; and quantifying neighbourhood, school and family effects on child outcomes. I also frequently collaborate with co-authors working in other disciplines, including: anthropology, dentistry, economics, epidemiology, psychology, and sociology.
My statistical software interests are in developing runmlwin and runmixregls, commands to fit multilevel models in the MLwiN and the MIXREGLS software from within Stata.
I run four two-day PhD short courses on the Advanced Quantitative Methods pathway of the ESRC South West Doctoral Training Centre (SWDTC):
I also teach a session on the Research Methods in Learning, Leadership and Policy course of the EdD programme.
I currently second supervise four PhD students applying multilevel modelling to address substantive research questions in the social sciences.
I have taught over 40 multilevel modelling short courses across UK, Europe, Australia and US, including: Belfast, Brisbane, Bristol, Brussels, Cincinnati, Dublin (Centre for Longitudinal Studies in Ireland), Dublin (Royal College of Surgeons, Ireland), Dublin (University College Dublin), Essex, Giessen, Oxford, London, Paris (Organisation for Economic Cooperation and Development), Southampton, Sydney, Tuebingen, and Zurich.
I author an extensive set of multilevel modelling training materials for the LEMMA Multilevel Modelling Online Course.
Current research grants
Past research grants
- 2011-2015 LEMMA 3, Co-investigator
- 2009-2012 e-Stat, Co-investigator
- 2008-2011 LEMMA 2, Co-investigator
- 2005-2008 LEMMA 1, ESRC linked PhD student
- Koster, J., Leckie, G., Miller, A., and Hames, R. (2015). Multilevel modeling analysis of dyadic network data with an application to Ye’kwana food sharing. American Journal of Physical Anthropology. Forthcoming
- Perlman, M., Lyon Amos, M., Leckie, G., Steele, F. and Jenkins, J. Capturing the temporal sequence of interaction in young siblings. PLOS ONE. Forthcoming.
- Leckie, G. and Goldstein, H. (2015). A multilevel modelling approach to measuring changing patterns of ethnic composition and segregation among London secondary schools, 2001-2010. Journal of the Royal Statistical Society: Series A (Statistics in Society), 178, 405-424.
- Zhang, Z., Charlton, C., Parker, R., Leckie, G., and Browne, W.J. (2015). R2MLwiN - A program to run the MLwiN multilevel modelling software from within R. Journal of Statistical Software.Forthcoming.
- Koster, J. and Leckie, G. (2014). Food sharing networks in lowland Nicaragua: An application of the social relations model to count data. Social Networks, 38, 100-110.
- Leckie, G. (2014). runmixregls - A program to run the MIXREGLS mixed-effects location scale software from within Stata. Journal of Statistical Software, 59 (Code Snippet 2), 1-41.
- Leckie, G., French, R., Charlton, C., and Browne, W. (2014). Modeling heterogeneous variance-covariance components in two-level models. Journal of Educational and Behavioral Statistics, 39, 307-332.
- Zammit, S., Gunnell, D., Lewis, G., Leckie, G., Dalman, C. and Allebeck, P. (2014). Individual and area level influence on suicide risk: a multilevel longitudinal study of Swedish school children. Psychological Medicine, 44, 267–277.
- Leckie, G. and Charlton, C. (2013). runmlwin - A program to run the MLwiN multilevel modelling software from within Stata. Journal of Statistical Software, 52 (11),1-40.
- Jenkins, J., Rasbash, J., Leckie, G., Gass, K. and Dunn, J. (2012). The role of maternal factors in sibling relationship quality: a multilevel study of multiple dyads per family. Journal of child psychology and psychiatry, 53, 622-629.
- Leckie, G., Pillinger, R., Jones, K. and Goldstein, H. (2012). Multilevel modelling of social segregation. Journal of Educational and Behavioral Statistics, 37, 3-30.
- Cheung, C., Goodman, D., Leckie, G. and Jenkins, J. (2011). Understanding contextual effects on externalizing behaviors in children in out-of-home care: Influence of workers and foster families. Children and Youth Services Review, 33, 2050-2060.
- Leckie, G. and Baird, J.-A. (2011). Rater effects on essay scoring: A multilevel analysis of severity drift, central tendency and rater experience. Journal of Educational Measurement, 48, 399-418.
- Leckie, G. and Goldstein, H. (2011). A note on “The limitations of using school league tables to inform school choice”. Journal of the Royal Statistical Society: Series A (Statistics in Society), 174, 833-836.
- Leckie, G. and Goldstein, H. (2011). Understanding uncertainty in school league tables. Fiscal Studies, 32, 207-224.
- Rasbash, J., Leckie, G., Pillinger, R. and Jenkins, J. (2010). Children's educational progress: partitioning family, school and area effects, Journal of the Royal Statistical Society: Series A (Statistics in Society), 173, 1-26.
- Leckie, G. (2009). The complexity of school and neighbourhood effects and movements of pupils on school differences in models of educational achievement, Journal of the Royal Statistical Society: Series A (Statistics in Society), 172, 537-554.
- Leckie, G. and Goldstein, H. (2009). The limitations of using school league tables to inform school choice, Journal of the Royal Statistical Society: Series A (Statistics in Society), 172, 835-851.
- Propper, C., Burgess, S., Bolster, A., Leckie, G., Jones, K. and Johnston, R. (2007). The impact of neighbourhood on the income and mental health of British social renters, Urban Studies, 44, 393-415.
- Propper, C., Damiani, M., Leckie, G. and Dixon, J. (2007). Impact of patients’ socioeconomic status on the distance travelled for hospital admission in the English National Health Service, Journal of Health Service Research & Policy, 12, 153-159.
- Leckie, G. (2014). Cross-classified hierarchical linear modeling. In: Michalos A. C. (Ed.). Encyclopedia of Quality of Life and Well-Being Research. Springer, Dordrecht, Netherlands: Springer, pp 1359-1363.
- Leckie, G. (2014). Multiple membership models. In: Michalos A. C. (Ed.). Encyclopedia of Quality of Life and Well-Being Research. Springer, Dordrecht, Netherlands: Springer, pp 4206-4210.
- Leckie, G. (2012) Cross-classified multilevel models using Stata: How important are schools and neighbourhoods for students’ educational attainment? In Garson, D. (Ed.) Hierarchical Linear Modeling: Guide and Applications. Sage, 311-332.
- Propper, C. and Leckie, G. (2011) Increasing competition between providers in health care markets: The economic evidence. In Smith, P. and Glied, S. (Eds.) Oxford Handbook of Health Economics. Oxford, Oxford University Press, 671-687.
- Leckie, G., Pillinger, R., Jenkins, J. and Rasbash, J. (2010) School, family, neighbourhood: which is most important to a child's education? Significance, 67-72.
- Goldstein, H. and Leckie, G. (2008) School league tables: What can they really tell us? Significance, 5, 67-69.
I play an active role in the Royal Statistical Society. Currently I sit on the Social Statistics Section committee. Previously I sat on the Professional Development Centre committee. Since 2008, I have taught (with Professor Harvey Goldstein) an annual two-day course on multilevel modelling for the society's short-course programme. I have published in the society's Series A (Statistics in Society) journal and Significance magazine and have peer reviewed for Series A and Series C. I have presented regularly at the society's annual conference and at various society local group meetings.
I have worked or advised on a range of government and other external projects: Catholic University of Portugal, Colombian Evaluation Institute, Higher Education Academy, King’s College London (MRC grant), National Center for Educational Achievement (NCEA) / ACT testing company, National Assessment Agency, Pearson Education, Rand Europe, The Times and Sunday Times Data Analysis Team, University of Birmingham (DoH grant), University of Oxford (Ofqual grant).
I co-run the DfE funded NPD User Group series of workshops.