By deploying our software together with experiment-specific script files that administer experimental procedures and image file handling, multi-institutional studies can be conducted that allow every reader to read every case, increase reader sample size or add experimental conditions (Berbaum, 2006). WorkstationJ makes it possible to add experimental conditions or increase reader sample sizes by collecting data at multiple locations without purchasing commercial systems for each location. Each location needs only a computer, a monitor or panel capable of displaying the needed resolution and image quality, an installed version of ImageJ, and our software. The image files and the experiment-specific script files can be sent to each location, and the log files of observer behavior returned. The software is packaged as a Java jar file and Java class files. It has only been tested on Windows systems, but it should run on Linux and Mac systems with a Java runtime environment.