I have always felt a certain disdain for traditional significance tests due to the way such models expect data to fit in nice and neat little patterns. Especially when data does not fit due to outlier values, these tests force the researcher to…

There are many statistical analyses of variance that can be performed on data. Perhaps the most widely known is the ANOVA, which plainly stands for analysis of variance. This test compares means from three (or more) groups to determine if there are significant differences in the…

There are many statistical analyses available, and choosing any one of them always requires the researcher to select the best fit analysis (or model) that accurately represents the data. This week we looked at multiple regression.

There is a schism in the world of infographics. On one side are talented graphic designers who artfully create awe inspiring images that are designed to grab attention rather than display data. On the other side are skillful statisticians who create relatively…

Psychology, a field dedicated to human subject research, is inundated with natural noise. This noise distorts experimentation, which in turn effects the statistics used to explain experimental results. In many ways, noise is a constant factor in human data and…