# How to limit the number of participants?

**URL:** <https://discourse.psychopy.org/t/how-to-limit-the-number-of-participants/35978>\
**Category:** Online experiments\
**Created:** [August 3, 2023, 6:05am UTC](https://discourse.psychopy.org/t/how-to-limit-the-number-of-participants/35978 "2023-08-03T06:05:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Irina\_Papazova](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/irina_papazova/32/38959_2.png) [@Irina\_Papazova](https://discourse.psychopy.org/u/Irina_Papazova)\
**Post date:** [August 3, 2023, 6:05am UTC](https://discourse.psychopy.org/t/how-to-limit-the-number-of-participants/35978/1 "2023-08-03T06:05:36Z")

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URL of experiment: [digistig\_end\_pavlovia [PsychoPy]](https://run.pavlovia.org/Irina_Papazova/digistig_end_pavlovia)

Description of the problem: Is there a way to limit the number of participants that take part in my online experiment? My sample should not exceed 62 participants, since I plan to compensate them and have some budgetary restrictions…

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**Author:** ![JensBoelte](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/jensboelte/32/9060_2.png) [@JensBoelte](https://discourse.psychopy.org/u/JensBoelte)\
**Post date:** [August 3, 2023, 9:24am UTC](https://discourse.psychopy.org/t/how-to-limit-the-number-of-participants/35978/2 "2023-08-03T09:24:35Z")

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Hello,

This might do the trick [New web app. VESPR Study Portal](https://discourse.psychopy.org/t/new-web-app-vespr-study-portal/22251) You will need the advanced features to set a maximum number of participants.

Best wishes Jens

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**Author:** ![wakecarter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/wakecarter/32/5753_2.png) [@wakecarter](https://discourse.psychopy.org/u/wakecarter)\
**Post date:** [August 3, 2023, 10:28am UTC](https://discourse.psychopy.org/t/how-to-limit-the-number-of-participants/35978/3 "2023-08-03T10:28:10Z")

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For a simple participation limit you just need the incremental participant number and some code in the experiment to stop participation once it exceeds 62. You could just use my original tool [https://moryscarter.com/vespr/pavlovia.php](https://moryscarter.com/vespr/pavlovia.php)

The Shelf is an alternatives to my VESPR Study portal for counterbalancing.  
[https://www.psychopy.org/online/shelf.html#counterbalancing](https://www.psychopy.org/online/shelf.html#counterbalancing)