%0 Journal Article %T Parametric and Nonparametric Tests in Spine Research: Why Do They Matter? %A Jens R. Chapman %A Joseph R. Dettori %A Sarah Hopkins %J Global Spine Journal %@ 2192-5690 %D 2018 %R 10.1177/2192568218782679 %K parametric %K nonparametric %K statistics %K normal distribution %U https://journals.sagepub.com/doi/full/10.1177/2192568218782679