Monthly Archives: August 2014

False discoveries everywhere

Since John Ioannidis published a paper in 2005 provocatively titled Why Most Published Research Findings are False, the general public and also researchers have gained a greater awareness of the unreliability of scientific discoveries based on “a single study assessed by formal … Continue reading

Posted in Uncategorized | Leave a comment

Is two still the magic number?

When doing data analysis, we have come to regard two as the threshold that a t-statistic must clear in order to declare a variable statistically significant. As most readers will know, this critical value ensures a 5% level of significance given a … Continue reading

Posted in statistics, stock market forecasting | Tagged , , , | Leave a comment