This article refers to:
Altoé, G., & Agnoli, F. (2013). The effect of stimulus variability on children's judgements of quantity. Journal of Cognitive Psychology. http://dx.doi.org/10.1080/20445911.2013.801485
When the above article was first published online, the sigma symbols on the abscissae of Figure 5 and 6 were incorrectly changed to alpha symbols and the sigma symbols in the first column of Table 1 were incorrectly typeset as the letter ‘s’. These errors have now been corrected in the online version.
Taylor & Francis apologises for this error.