Bryson Purdon Social Research LLP (BPSR) is a partnership set up in 2009 between Dr Susan Purdon, a social science statistician, and Caroline Bryson, a quantitative social scientist, each of whom has over 30 years’ research experience. BPSR specialises in the design, implementation, analysis and reporting of quantitative impact evaluations, with expertise both in randomised controlled trials (RCTs) and in quasi-experimental designs (QEDs). Whilst we work across a wide range of policy areas, we have particular expertise on issues related to children and families.