Validity and Reliability
Validity and Reliability

Validity and Reliability

by Raywat Deonandan, PhD

Causality is defined as the cause-and-effect relationship between two or more events or variables. The idea that all things in the universe have a cause-and-effect relationship between them has been held since antiquity, usually established by careful argumentation and reasoning. This is still the case in multiple areas of study today, but in clinical research these relationships are ascertained via mathematical methods.

In this course, the student will be given an overview of the understanding of causality in epidemiology, as well as the concepts of internal and external validity and reliability, with explanations of how these are calculated.

For optimal understanding, the student is required to be familiar with the basics of arithmetic, algebra, and epidemiology. Since some concepts may be very abstract to some, it’s encouraged to rewatch some video lectures until the concepts are fully grasped.

Course Details

  • Videos 5
  • Duration 0:20 h
  • Quiz questions 9
  • Concept Pages 1


Your Educators of course Validity and Reliability

 Raywat Deonandan, PhD

Raywat Deonandan, PhD

Dr. Raywat Deonandan is a Global Health Epidemiologist and an Associate Professor of Health Sciences at the University of Ottawa, Canada.
He obtained his PhD in Epidemiology and Biostatistics from the University of Western Ontario in 2001. He is also the founder and Executive Editor of the Interdisciplinary Journal of Health Sciences, and an award-winning author and journalist.
Dr. Deonandan embraces new media to engage in public education and co-hosts a science education podcast. In 2016, he received the OCUFA Teaching Award, the highest professorial teaching honour in Ontario.
Within Lecturio, he teaches courses on Epidemiology and Biostatistics."

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Great lecture
By Rosangela S. on 05. October 2018 for Validity & Reliability: Introduction

Great lecture, this Doctor is so passionate about epidemiology that makes you want to stay focus on it!