SNP: A system for nonadaptive procedures

A software system which is currently being used to collect and analyze data for a wide range of auditory psychophysical procedures is described. Its principal advantages are its scope, its ease of use during data collection, the uniformity it lends to data collection procedures in widely different experiments, and the fact that no additional programming is required to run most experiments. Although the system reflects a specific interface configuration and the availability of an 8K PDP-15, the programming has been done in FORTRAN and contains a number of features which may be of interest to even Es building hard-wired programming devices.