The Brookbush Institute continues to enhance education with new courses, a modern glossary, an AI Tutor, and a client program generator. Observational research may be ideal when an independent ...

Claims about the diagnostic or prognostic accuracy of markers often prove disappointing when “discrimination” found between cancers versus normals is due to bias, a systematic difference between ...

Claims that molecular markers can accurately diagnose cancer have recently been disputed; some prominent results have not been reproduced and bias has been proposed to explain the original ...

Observational Research: Observational research is a study design in which researchers do not actively manipulate variables but instead observe and measure naturally occurring relationships between ...