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. Author manuscript; available in PMC: 2017 Jul 19.
Published in final edited form as: Behav Res Methods. 2015 Mar;47(1):13–26. doi: 10.3758/s13428-014-0450-6

Fig. 3.

Fig. 3

Estimates of the parameters for a virtual observer’s psychometric function as a function of the number of trials. The top, middle, and bottom panels plot the results for α, β, and λ, respectively. The “true” values for the simulated observer’s parameters α0, β0, and λ0 (10, 1.6, and .05, respectively) are indicated using dashed lines. After 200 trials, the estimated parameters were 10, 1.58, and .04, respectively