Researchers from Northwestern University, University of Pennsylvania, and University of Colorado published a new Journal of Marketing study that proposes abandoning null hypothesis significance ...

At times we wish to examine statistical evidence, and determine whether it supports or contradicts a claim that has been made (or that we might wish to make) concerning the entire population. This is ...

Michael Lew has received funding from the NHMRC. Yesterday’s article by Geoff Cumming, based on a very recent Proceedings of the National Academy of Science paper, argued that “null hypothesis ...

What? Perhaps primary among the challenges and conditions that face life scientists is the infinite variability between individuals. An important tool for measuring those disparities is the Null ...

(THE CONVERSATION) Should you believe the findings of scientific studies? Amid current concerns about the public’s trust in science, old arguments are resurfacing that can sow confusion. As a ...

It may be common knowledge that p < .05 indicates statistical significance. Psychology students (and others) are often taught that p < .05 means the probability (p) of rejecting the null hypothesis ...

Read on to learn more about what a t-test is, the different formulas used, and when to apply each type to compare means and ...

Research and statistical analysis help us understand how the world works, how effective medications and treatments are, what influences our health, the best approach for business practices, and much ...

Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is most often used by researchers to test predictions, called hypotheses. The first step in ...