Provides methods for sensory discrimination methods;
duotrio, tetrad, triangle, 2-AFC, 3-AFC, A-not A, same-different,
2-AC and degree-of-difference.
This enables the calculation of d-primes, standard errors of
d-primes, sample size and power computations, and
comparisons of different d-primes. Methods for profile likelihood
confidence intervals and plotting are included. Most methods are
described in Brockhoff, P.B. and Christensen, R.H.B. (2010)