BMJ Open

Practical guide for determining whether healthcare providers are research participants in cluster randomised trials

Introduction In cluster randomised trials (CRT), groups (rather than individuals) are randomised to intervention and control conditions. Since the publication of the Ottawa Statement on the Ethical ...
The Conversation

Early COVID‑19 research is riddled with poor methods and low‑quality results − a problem for science the pandemic worsened but didn’t create

Early in the COVID-19 pandemic, researchers flooded journals with studies about the then-novel coronavirus. Many publications streamlined the peer-review process for COVID-19 papers while keeping ...
Pew Research Center

Comparing Two Types of Online Survey Samples

Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...
National Academies of Sciences%2c Engineering%2c and Medicine

Data, Metrics, and Analytic Methods for Assessing Equity Impacts of Surface Transportation Investments: Phase 2 Study to Support State and Local Decision Making

This study will identify methods state and local decision makers can use to assess equity impacts of surface transportation investments. The study committee will identify and advise on opportunities ...