Lowering p-value threshold

Instead of relying on a p-value threshold of .05 or lowering it to .005, we have to calculate how much our p-value is worth. This is the probability that a positive finding in a study is a true positive—the positive predictive value (PPV). To make this more intuitive, we created p-meter, a web app that allows users to calculate positive predictive values based on the observed p-value in a positive trial.