A javascript library for running behavioral experiments on the web.
jsPsych is a JavaScript based library for creating and running behavioral experiments in a web browser. It defines a formal structure for assembling experiments using a variety of plugins, making it easy to create a new experiment with only a handful of lines of JavaScript. Experienced programmers will be able to add new plugins to define new building blocks forexperiments. With the increasing power of web technology and the flexibility of jsPsych, virtually any kind of behavioral experiment is possible.
The basic formula for using jsPsych is to define the structure of the experiment using a few lines of JavaScript and then tell jsPsych to run the experiment. The description of the experiment is generated by assembling different plugins together. Each plugin defines a different kind of behavioral task that a subject can complete, like responding to a stimulus by pressing a key, reading instructions, or answering a survey question.
The project wiki contains a list of included plugins. Documentation for each plugin is available from that list.
You can create your own plugin. The formal structure of a plugin is very flexible, making it possible to create a plugin that describes almost any kind of task you can imagine. If you create a plugin that would be useful for other people, consider adding it to jsPsych!
jsPsych was created by Josh de Leeuw (@jodeleeuw) at Indiana University. You can email jodeleeu@indiana.edu with any questions about how to use jsPsych.