A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Many of Pew Research Center’s survey analyses show relationships between two ...

Learn how the Least Squares Criterion determines the line of best fit for data analysis, enhancing predictive accuracy in finance, economics, and investing.

Data obtained from uncontrolled experiments are often fitted to regression models, in which the dependent variable is assumed to be affected by a number of independent factors. The regression ...