Independent-samples T-tests 2: Effect Size

In this video, I demonstrate how to calculate the effect size for independent-samples t-tests and interpret the results. Three effect sizes are discussed: 1. Cohen's d: two groups have similar SDs and the same size. 2. Glass's delta: if each group has a different SD. 3. Hedges' g: different and/or small sample sizes; (below 20) The calculator used is accessible from here: https://www.socscistatistics.com/effe...