Related Experiment Video
Updated: Jul 2, 2026

Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
The search for truth must go beyond statistics
1Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts 02115, USA. walter.willett@channing.harvard.edu
Abstract:
Although hardly new, caution is warranted in the interpretation of new findings in epidemiology as they are often due to chance. Replication remains the most important way to evaluate such findings. Although the application of statistical probability will be particularly useful in the identification of false-positive findings in genetic epidemiology, the problems of confounding and measurement error are uniquely small in this field. In other applications, epidemiology will be most successful when it is closely integrated with other areas of human biology.
Related Concept Videos
Detection of Gross Error: The Q Test
Decision Making: Traditional Method
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
Statistical Significance
Statistical Hypothesis Testing
Statistical significance measures the probability that an observed result occurred by chance. If this probability, known as...
Statistical Analysis: Overview
One of the most commonly used statistical quantifiers is the mean, which is the ratio between the sum of the numerical values of all results and the...
Ethics in Research

