Abstract
The SDT-SP is a computer program which allows to compute parameters from the more used detection theory designs in different experimental settings. A new extension of the program allows to estimate sensitivity as well as bias parameters corresponding to "same/different" designs. Among the ex-perimental designs that can be analyzed with this program are: (a) one interval experiments, (b) rating experiments, and (c) mAFC experiments. Group's parameters can also be obtained. SDT-SP is also useful in hypothesis testing. The program, written in Pascal, runs in IBMs compatible computers. It is accurate, fast, and easy to use. An User's Manual and the corresponding software is being published by the Universidad Nacional de Educación a Distancia.
