Research design and statistics : some basic concepts -- Questionnaires, surveys, and sampling -- The nature of the data -- Techniques of descriptive statistics -- Testing hypotheses -- Designing your study -- Sources of error in research -- Matching the research design to the statistical test -- Putting the theory into practice -- Writing up the research for publication -- Reading published research critically -- Non-parametric tests for same- and matched-subject designs -- Parametric tests for same- and matched-subject designs -- Non-parametric tests for different- (unrelated-) subject designs -- Parametric tests for different- (unrelated-) subject designs -- Non-parametric and parametric tests for correlational designs -- Estimation -- Attitude scales -- Repertory grid analysis -- Using statistics in diagnostic and screening tests : receiver operating characteristics -- Capturing expert opinion : the Delphi technique -- Capturing the user voice : Thurstone's paired comparison technique -- Capturing the clinician's view : reliability measures -- Undertaking systematic reviews.