Does psychoPy by default record reaction time?

I have completed building my experiment and I would like to go ahead and run my experiment online. my question is: Does psychoPy by default record reaction time? I basically want PsychoPy to start measuring participants reaction time from when a video ends (end of video) to when they click on the option they think is correct. Any help to make sure I have everything set properly.

OS (e.g. Win10):
PsychoPy version (e.g. 2024.2.4 Py 3.8): PsychoPy 2025.2.4
Standard Standalone Installation? (y/n) yes
Do you want it to also run online? (y/n) yes
What are you trying to achieve?: I want to make sure that reaction time is measured.

What did you try to make it work?: Not Applicable

Link to the most relevant existing thread you have found:

What specifically went wrong when you tried that?: Not applicable ( I have not tried anything)
Include pasted full error message if possible. “That didn’t work” is not enough information.

Hello @MSGG

You need a reaction device, keyboard, mouse, button-box, aso. You need to set it to record the reaction. This is the default. The trial-option of the loop should be checked. This is also the default.

Best wishes Jens

Thank you so much for your response. can you further clarify what you mean by: “ the trial-option of the loop should be checked”.

what exactly should I check? can you help guide me, please. Thank you.

Dear MSGG,

For newer users of psychopy and are unfamiliar with python and/or experiment design software, it’s always recommended to read the documentation.

In addition, to ensure your experiment is working properly you should ALWAYS PILOT YOUR OWN STUDY multiple times yourself and asking other people in your workspace to do so as well. Ensuring there is no bugs/issues with the experiment, and that the data output is correct.

Issac

1 Like

Hello @MSGG

Another good source to familarize oneself with PsychoPy is the book Building Experiments in PsychoPy by Peirce, Hirst and MacAskill.

See here the revelant check-box.

and here

Best wishes Jens

1 Like