Clinical research has always been the backbone of medical progress, providing the data and insights needed to develop new treatments, improve patient outcomes, and advance public health. Yet, the ...

Bioequivalence studies are an essential component in the development and approval of generic pharmaceutical products, ensuring that they perform similarly to their reference counterparts. These ...

Case-cohort study designs represent a cost-effective and efficient strategy for analysing time-to-event data, particularly when the event of interest is rare. By selecting a random subcohort along ...

As biomarker studies employ increasingly complex and expensive genomics and other correlative methods, it is increasingly important to rigorously design these studies and analyze the downstream ...

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, ...

Empirical research requires good data to complement statistical rigor in providing answers to global poverty questions. Poor data quality can lead to biases in causal inference, lower the probability ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. The Pew-Knight Initiative supports new research on how Americans absorb civic ...

This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...