Navigating this blog Some routes into the blog: Evaluation Emergence and complexity in social programme evaluation What is Theory-Based Evaluation, really? Being realistic about “realist” evaluation RCT methodology Standard errors of marginal means in an RCT Efficacy RCTs as survey twins Computer science The arithmetic of the Deutsch algorithm The Halting Problem in R Listing numbers Enumerating permutations – an example of recursion Thinking about action the Belfast way Social ontology What is a social fact? The grounding-anchoring model The social model of disability as a case study of social ontology A Bayesian norm-relevancy account of gender