Dr Rebecca Playle

Dr Rebecca Playle

Senior Lecturer in Medical Statistics

School of Dentistry

Media commentator

Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

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

  • 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

Areas of expertise