Medical research is essential for advancing the understanding of health, diseases, and treatments. There are many types of studies that serve different purposes. Medical research, or health research, ...

Quantitative and qualitative approaches face different challenges and expectations, particularly when it comes to data ...

New scientific methods could one day render animal studies—the standard in research laboratories for more than 100 years—obsolete. Clive Svendsen, Ph.D., executive director of the Board of Governors ...

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 ...