Fig. 7.
Scatterplots of estimated α (top row) and estimated β (bottom row) across variants of the landmark task. Estimates from Observer 11 are excluded (see Appendix C). The inset at the top left of each panel shows the value of the concordance correlation coefficient ρc and the p value associated with the Bradley–Blackwood (1989) test for equality of means and variances. The sketches near the bottom and left axes in each panel indicate the mean and standard deviation of the data along the corresponding dimension. Color is available only in the online version