A forthcoming paper in the Quarterly Journal of Economics (QJE), "A Cognitive View of Policing" (htm), reports results from a field experiment showing that teaching police officers to "consider different ways of interpreting situations they encounter" led to "reductions in use of force, [and] discretionary arrests" (abstract). In this post I explain why, having spent... The post [122] Arresting Flexibility: A QJE field experiment on police behavior with about 40 outcome variables appeared fir...| Data Colada
A forthcoming paper in Psych Methods (.pdf) had a set of coders evaluate 300 pre-registrations in terms of how informative they were about several study attributes (e.g., hypotheses, analysis, DVs). The authors analyzed the subjective codings and concluded that many pre-registrations in psychology, especially those relying on the AsPredicted template, provide insufficient information., Central to... The post [119] A Hidden Confound in a <i>Psych Methods</i> Pre‑registrations Critique appear...| Data Colada
Pre-registration is the best and possibly only solution to p-hacking. Ten years ago, pre-registrations were virtually unheard of in psychology, but they have become increasingly common since then. I was curious just how common they have become, and so I collected some data. This post shares the results. The data From the Web of Science... The post [115] Preregistration Prevalence appeared first on Data Colada.| Data Colada
A recently published Nature paper (.htm) examined an interesting psychological hypothesis and applied it to a policy relevant question. The authors ran an ambitious field experiment and posted all their data, code, and materials. They also were transparent in showing the results of many different analyses, including some that yielded non-significant results. This is in... The post [101] Transparency Makes Research Evaluable: Evaluating a Field Experiment on Crime Published in <i>Nature</i> ap...| Data Colada