Errata for Kirby & Sonderegger (2013) James P. Kirby School of Philosophy, Psychology and Language Sciences University of Edinburgh Equation (13) on page 779 should read: $= \frac{\exp \left[ -\sum_{i=1}^{n} (y_i - \mu_a + p)^2/(2\sigma_a^2) \right]}{ (2 \pi \sigma_a^2)^{n/2}}$ (hat tip to Elena Miu)   The final sentence of paragraph 3 on page 780 should read: Due to space constraints we discuss only the results for single-teacher models; the results for analogous multiple-teacher models are similar, in terms of our modeling goals.   These corrections have been made in the version downloadable from this website; they are only applicable to the published version.