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 ...

“The statistician knows...that in nature there never was a normal distribution, there never was a straight line, yet with normal and linear assumptions, known to be false, he can often derive ...

Last month we explored how to model a simple relationship between two ... we can use multiple linear regression (MLR). Although MLR is similar to linear regression, the interpretation of MLR ...