Ewch i’r prif gynnwys
Dr Rebecca Playle

Dr Rebecca Playle

Senior Lecturer in Medical Statistics

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Ar gael fel goruchwyliwr ôl-raddedig

Research Theme

Applied Clinical Research & Public Health

Research Group

Epidemiology and Applied Clinical Research

Research Interests

Statistical Methods in Medical and Dental Research


Selected Projects

  • Multilevel modelling of caries data
  • The design and analysis of randomised controlled trials
  • 3D laser modelling
  • The reliability of orthodontic indices

Career Profile

1993-1995           Research Statistician, Health Promotion Wales, Cardiff UK

1995-2001           Medical Statistician, Diabetes Research Unit, Llandough Hospital,  Cardiff UK

2001-2001          Lecturer in Statistics, University of Western Sydney, Australia

2001-2001           Research Statistician, University of Sydney, Australia

2002-2004           Lecturer in Epidemiology and Medical Statistics, Dept of Epidemiology, University of   Wales College Cardiff, UK

2004-2007          Lecturer in Medical Statistics, Cardiff University Dental School, UK

2007-present     Part-time secondment as Senior Statistician for the South East Wales Trials Unit, Cardiff University  

Memberships / External Activities

Fellow of the HEA

Awards / Prizes

Certificate in Teaching Statistics in Higher Education

Teaching Profile

Undergraduate Teaching topics Year 3

  • Introduction to SPSS, data entry, cleaning and management, graphing, summary statistics and the Normal distribution
  • Introduction to confidence intervals, sampling variation, testing for normality, confidence intervals for paired data
  • Probability and hypothesis testing,   paired parametric and non-parametric tests
  • Comparson of independent groups, unpaired parametric and non-parametric tests
  • Proportions and Caregorical data, Chi-square tests, Relative risks and Odds ratios

Undergraduate Teaching topics Year 4

  • Study design
  • Statistics for critical appraisal

Postgraduate and Advanced Teaching topics

  • Adequacy of statistical information, interpretation of statistical tests, Type I and Type II errors, study planning and power, statistical significance and clinical importance
  • Oneway ANOVA, assumptions of ANOVA, model building and checking, post hoc tests
  • Two factor ANOVA, fixed and random effects, model building and checking
  • Regression, bivariate and multivariate linear regression, assumption checking and model fitting
  • Logistic regression, bivariate and multivariate regression




















  • Moore, L. A. R., Playle, R. A. and Smith, C. 1995. Social group trends in smoking in Wales, 1985-1993. Presented at: 9th World Conference on Tobacco and Health, Paris, France, 10-14 October 1994 Presented at Slama, K. ed.Tobacco and Health: Proceedings of the 9th World Conference on Tobacco and Health, Paris, France, 10-14 October 1994. New York: Plenum Press pp. 575-578.
  • The analysis of population surveys and technical report writing
  • The analysis of health promotion intervention data and writing for publication in health promotion literature
  • The analysis of longitudinal clinical data
  • Statistical advice and consultancy for clinical research
  • The design and analysis of epidemiological and clinical studies
  • Conference presentation of statistical and medical research
  • The publication of statistical and dental research in dental research literature
  • Statistical reviewer for the Journal of Orthodontics

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