DOI 10.3758/s13428-013-0330-5
There is an error in Equation (9), Appendix 2: the term in parentheses in the numerator should be raised to the third power. We thank Tobias Johansson for bringing this omission to our attention.
The correct equation is: \( a=\frac{{\displaystyle \sum {\left(\overline{\theta}-{\widehat{\theta}}_{-i}\right)}^3}}{6{\left[{\displaystyle \sum {\left(\overline{\theta}-{\widehat{\theta}}_{-i}\right)}^2}\right]}^{3/2}} \)
Also, on p. 919, the citation “Rosnow et al., 2000, pp. 128-130” should have been “Rosenthal et al., 2000, pp. 128-130.” The reference is to
Rosenthal, R., Rosnow, R. L., & Rubin, D. B. (2000), Contrasts and effect sizes in behavioral research. NY: Cambridge University Press.
We thank Pierre Dragicevic for catching this error.
Author information
Affiliations
Department of Psychology, Williams College, Williamstown, MA, 01267, USA
Kris N. Kirby
Enplus Advisors Inc., Cambridge, MA, USA
Daniel Gerlanc
Corresponding author
Correspondence to
Kris N. Kirby.