QUEST+ for the OPI

An implementation of the Bayesian test procedure QUEST+ by AB Watson [1] written by Giovanni Montesano. It is mostly a translation of the MATLAB implementation by P Jones [2]. Its use is similar to ZEST. The objective is to estimate parameters of a function that defines the probability of responding stimuli. The steps are optimized based on entropy rather than the mean or the mode of the current pdfs.

References

[1] Andrew B. Watson; QUEST+: A general multidimensional Bayesian adaptive psychometric method. Journal of Vision 2017;17(3):10. doi: https://doi.org/10.1167/17.3.10.

[2] Jones, P. R. (2018). QuestPlus: a MATLAB implementation of the QUEST+ adaptive psychometric method, Journal of Open Research Software, 6(1):27. doi: http://doi.org/10.5334/jors.195.