Justin Wolfers' "A Persuasive Chart Showing How Persuasive Charts Are" on December 22, 2014 graphs and charts New York Times statistical literacy +
Kristopher Magnusson's "Interpreting Cohen's d effect size" on December 15, 2014 effect sizes interactive rpsychologist the new statistics +
UCLA's "What statistical analysis should I use?" on December 10, 2014 ANOVA chi-square correlation data analysis interactive R regression SAS SPSS Stata t-test +
Tessa Arias' "The Ultimate Guide to Chocolate Chip Cookies" on December 01, 2014 alternative hypothesis chocolate control group cookies experimental group hypothesis testing null hypothesis research methods scientific method +