Bryson Purdon Social Research LLP (BPSR) is an independent research partnership specialising in policy and programme impact evaluation and survey methodology. There are two partners: Caroline Bryson, a quantitative social scientist, and Dr Susan Purdon, a statistician.
Bryson Purdon Social Research LLP is an independent research partnership set up in 2009 specialising in policy and programme impact evaluation and survey methodology.
We work on evaluations across a wide range of policy areas, including early intervention and support for families, health and disability, and ageing. We collaborate with academics, research organisations, consultants and third sector organisations, typically leading on the design and analysis of the impact evaluation. We specialise in quasi-experimental and randomised controlled trial designs.
We also conduct methodological scoping and feasibility studies in relation to evaluations and surveys, and provide ongoing and ad hoc consultancy and advice.
Dr Susan Purdon is a qualified statistician with research interests in the design, implementation and analysis of sample surveys, social experiments, and quasi-experiments. She is an expert in the statistical aspects of evaluation impact studies, and has many years’ experience of techniques such as propensity score matching and regression. She also has considerable expertise in complex sampling and estimation, including standard error estimation for complex surveys, non-response and missing-data assessment; weighting; and statistical tests.
She worked for 15 years at NatCen Social Research, spending periods as Director of both the Survey Methods Unit and the Evaluation Unit, and as its Quantitative Methods Advisor. Susan has a BSc in Mathematics, an MSc in Applied Statistics and a PhD in Mathematics.
Caroline Bryson is a quantitative social scientist with over 25 years’ experience. She has broad-reaching expertise in evaluation and survey development and implementation, questionnaire design, primary and secondary data analysis, and reporting for a wide range of audiences. Her substantive specialisms include family separation, parenting and early years intervention.
Prior to setting up BPSR, she spent 13 years at NatCen Social Research, latterly as Co-Director of the Families and Children Group, and a year at the Nuffield Foundation. She is Deputy Chair of the NSPCC Research Ethics Committee. She has a BA in Psychology from Exeter University and an MSc in Social Policy from the London School of Economics.
We are a quantitative research partnership offering expertise in:
We collaborate on research studies and evaluations with academics, research organisations, consultants and third sector organisations
We conduct feasibility and scoping studies on evaluation and survey design, and provide ad hoc advice and consultancy
(Shown in reverse date order of publication.)