What can I do with jsPsych?
jsPsych comes with a number of plugins that you can use create tasks and collect data. Some plugins do general things, like present a stimulus (text, image, audio, video) and record a key press or button response along with a response time. Other plugins do more specific things, like show a set of instructions pages, run a drag-and-drop image sorting task, present a Random-Dot Kinematogram, or calibrate the WebGazer eye-tracking extension. See the documentation website for a list of all plugins, and to see what each plugin can do.
Often people can create their experiment by combining these plugins together. But if that's not possible for your experiment, you can also modify a plugin file or create your own plugin. This gives you the flexibility to do exactly what you want, while still taking advantage of jsPsych's general experiment-building framework.
Several example experiments and plugin demonstrations are available in the
/examples folder. After you've downloaded the latest release, double-click on an example HTML file to run it in your web browser, and open it with a programming-friendly text editor to see how it works.
Documentation is available at jspsych.org.
For questions about using the library, please use the GitHub Discussions forum.
Contributions to the code are welcome. Please use the Issue tracker system to report bugs or discuss suggestions for new features and improvements. If you would like to contribute code, submit a Pull request. See the Contributing to jsPsych documentation page for more information.
If you use this library in academic work, please cite the paper that describes jsPsych:
- Hilbig, B. E. (2016). Reaction time effects in lab- versus web-based research: Experimental evidence. Behavior Research Methods, 48(4), 1718-1724.
- Pinet, S., Zielinski, C., Mathôt, S. et al. (2017). Measuring sequences of keystrokes with jsPsych: Reliability of response times and interkeystroke intervals. Behavior Research Methods, 49(3), 1163-1176.
jsPsych was created by Josh de Leeuw (@jodeleeuw).