A software package is described that collects and reduces eye behavior data (eye position and pupil size) using an IBM-PC compatible computer. Written in C language for speed and portability, it includes several features: (1) data can be simultaneously collected from other sources (such as electroencephalography and electromyography); (2)…

Discusses how Type-Token Ratios (TTRs) have been used in a variety of research efforts in speech communication, including studies of the interactions between source credibility, motivation, cognitive states, and context with language use. Describes the two versions of a TTR computation program that are available in BASIC. Presents sources…

STATGRAPHICS, a statistical package written for the IBM PC/XT/AT, is reviewed. In addition to superb graphics, STATGRAPHICS is unequalled in time series procedures, quality control, linear programming, and other mathematical procedures. The modules for regression analysis, categorical data analysis, and nonparametric analysis are good, but contain…