In the article that accompanies this editorial, Lu et al 5 conducted a systematic review on the use of instrumental variable (IV) methods in oncology comparative effectiveness research. The main ...

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 ...

Findings of psychological research now regularly escape the ivory towers of academe to permeate popular media. This results in misunderstandings, misinterpretations, and misquoting of research ...

This Pew Research Center survey was conducted among a nationally representative sample of adults to provide estimates of the U.S. population’s religious composition, beliefs and practices. Pew ...