Dr. Joshua J. Reynolds
Forensic and Legal Psychology
Assistant Professor
Psychology Department
University of Scranton
In darkest day, in blackest night, no data shall escape my sight. Let those who worship anecdote’s might, beware my power, statistics fight!
I love statistics like Oprah loves bread. I find statistics frequently challenging but also a lot of fun, once you understand them. I was taught frequentist (classical) statistics in school but for my research I have switched to using Bayesian statistics, which are superior in many situations. I have uploaded some statistics resources here you may find useful. Use responsibly.
If you use frequentist stats and need to do a quick independent samples t-test or dependent samples t-test, here are some excel calculators you may find useful. Included is an effect size estimate and a graph. You just enter the data and the rest is generated automatically. Please use responsibly.
Independent samples t-test
Dependent samples t-test
Here is a worked example of factorial ANOVA I did in Excel. I think these are really useful for teaching purposes and for breaking down the calculations conceptually.
Here is a worked example of a one way ANOVA in Excel.
Some Bayesian analyses for teaching purposes
Grid approximation example script in R (based on the Rethinking book). Also an example of grid approximation with quadratic approximation at the end.
Bayesian Analyses for teaching
R script with an example for grid approximation, quadratic approximation, and Markov Chain Monte Carlo approximation (MCMC)
Excel calculator with many options for Cohen's d
Excel calculator for many types of Omega squared and partial omega squared