We discuss a relatively new meta-scientific research design: many-analyst studies that attempt to assess the replicability and credibility of research based on large-scale observational data. In these studies, a large number of analysts try to answer …
In this course, we will explore the so‐called “reproducibility crisis” that has struck fields from psychology and economics to ecology and cancer biology. You will learn statistical principles at the heart of the reproducibility crisis, how disregard …
When designing a study, the planned sample size is often based on power analyses. One way to choose an effect size for power analyses is by relying on pilot data. A-priori power analyses are only accurate when the effect size estimate is accurate. In …
Low power in experimental psychology is an oft-discussed problem. We show in the context of the Replicability Project: Psychology (Open Science Collaboration, 2015) that sample sizes are so small in psychology that often one cannot detect even large …
Researchers should be motivated to adequately power statistical tests because tests with low power have a low probability of detecting true effects. However, it is also often claimed that significant results obtained by underpowered tests are less …
A company-authored case study of source verification and outcome classification in sanctions-status research. A deliberately selected panel contained 64 companies removed from the OFAC SDN List and 32 listed controls. In 96 Google searches on 8 …
A company-authored worked example of measuring structured-field availability in two official sanctions XML snapshots retrieved on 30 September 2026. It separates absent birth dates from partial dates, aliases from primary-name variations, and …
Free browser-based exploration of published country-level statistics on access to at least basic sanitation. The interface provides historical indicator views, source references, reporting years and CSV downloads linked to a dated release. It can …
A curated, open-access directory of Free and Open Source Software (FOSS) and research tools. Designed to support early-career researchers, particularly in the Global South, across the entire research lifecycle: data collection, …
Psychological science is experiencing a rise in the application of complex statistical models and, simultaneously, a renewed focus on applying research in a confirmatory manner. This presents a fundamental conflict for psychological researchers as …