Estimation of parameters for the Grice theory of simple reaction time

The variable-criterion theory of simple reaction times proposed by G. R. Grice is briefly summarized. Grice's method of parameter estimation is described, and it is shown how these procedures can be converted to a least-squares estimation. Finally, the likelihood function is derived from the theory, thereby permitting use of the method of maximum likelihood for estimating the Grice parameters in experiments of simple reaction times.