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README.md

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jsPsych is a JavaScript library for creating behavioral experiments that run in a web browser. jsPsych provides a framework for defining experiments using a set of flexible plugins that create different kinds of tasks a subject could complete during an experiment. By assembling these different plugins together it is possible to create many different types of experiments.

Examples

Several example experiments and plugin demonstrations are available in the /examples folder.

Documentation

Documentation is available at docs.jspsych.org.

Need help?

For questions about using the library, please use the Discussions forum.

Contributing

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.

Citation

If you use this library in academic work, please cite the paper that describes jsPsych:

de Leeuw, J.R. (2015). jsPsych: A JavaScript library for creating behavioral experiments in a Web browser. Behavior Research Methods, 47(1), 1-12. doi:10.3758/s13428-014-0458-y

Response times

Wondering if jsPsych can be used for research that depends on accurate response time measurement? For most purposes, the answer is yes. Response time measurements in jsPsych (and JavaScript in general) are comparable to those taken in standard lab software like Psychophysics Toolbox and E-Prime. Response times measured in JavaScript tend to be a little bit longer (10-40ms), but have similar variance. See the following references for extensive work on this topic.

Credits

jsPsych was created by Josh de Leeuw (@jodeleeuw).

There have been many contributors to the library. Thank you!

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