I needed to put together a simple little Excel calculator for the Cohen’s d and Hedges’s g effect sizes. While there are many different online calculators out there, I like the idea that I can go in and verify the calculations if necessary, and add things to it (I would eventually like to add in confidence intervals for both effect sizes, if I can figure it out). I have this sheet calculating both Cohen’s d … Read more
At weightlifting meets, we usually use the Sinclair Formula to adjust performances in order to determine best lifter. The Sinclair coefficient and formula is based off of world record performances in the previous Olympic Cycle. The idea is that it adjusts a person’s performance using their bodyweight and the coefficient. The number that is gotten by using the Sinclair Formula is what the lifter would total, theoretically, if they were at the highest weight class, assuming the same … Read more
As I understand it Google Scholar is one of the most widely used research databases out there. There are certainly alternatives from other companies, like Web of Science or Scopus, but I don’t think the competitors have the breadth or depth that Google Scholar has. Google itself is a web search behemoth, so it isn’t terribly surprising that when it decided to put skin in the research indexing game, it would also dominate. Yes, sport science … Read more
Well, it has now been 6 months that I have been using R “regularly”. I set out from the beginning to learn R, and since the last time I attempted it, I need to make sure that I had external reasons for needing to learn it. To do that I told myself that I wouldn’t touch any statistical software that I had used previously (SPSS, SAS, MiniTab). This put me in the position that I … Read more
Note: I’m using my dissertation as an excuse to learn R. I’m going to put out some of my code for others to peruse/use/improve/correct. Hopefully we can all learn a little bit from it. If you do use it or change it, please let me know in the comments what you did so I can learn too! Most statistics that you are going to run rely on a number of assumptions about your data. One … Read more