Correction: Why Psychologists Should by Default Use Welch’s 't'-test Instead of Student’s 't'-test

Abstract

This article details a correction to: Delacre, M., Lakens, D., & Leys, C. (2017). Why Psychologists Should by Default Use Welch’s 't'-test Instead of Student’s t-test. 'International Review of Social Psychology', 30(1), 92–101. DOI: https://doi.org/10.5334/irsp.82.

Keywords

• welch’s 't'-test
• student’s 't'-test
• homogeneity of variance
• levene’s test
• homoscedasticity
• statistical power
• type i error and type ii error