# Experiment data not saved

**URL:** <https://discourse.psychopy.org/t/experiment-data-not-saved/37894>\
**Category:** Online experiments\
**Tags:** pavlovia\
**Created:** [December 12, 2023, 1:54pm UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894 "2023-12-12T13:54:31Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![es265](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/es265/32/39014_2.png) [@es265](https://discourse.psychopy.org/u/es265)\
**Post date:** [December 12, 2023, 1:54pm UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894/1 "2023-12-12T13:54:31Z")

</div>

URL of experiment: [task\_comp\_nash [PsychoPy]](https://run.pavlovia.org/dnhi/comp01)

Description of the problem: One participant’s data was not saved even though all indications show that the person completed the task. He/she finished the survey outomatically prompted after the task and correctly submited the completion code to Prolific. I used Psychopy for coding the task with a copy and past completion code.

---

<div class="post-metadata">

**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:** [December 12, 2023, 4:49pm UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894/2 "2023-12-12T16:49:09Z")

</div>

How do you redirect to Prolific? Do you show the completion code on screen?

---

<div class="post-metadata">

**Author:** ![es265](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/es265/32/39014_2.png) [@es265](https://discourse.psychopy.org/u/es265)\
**Post date:** [January 29, 2024, 4:04pm UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894/3 "2024-01-29T16:04:41Z")

</div>

I automatically redirect via URL to prolific and the completion code should be displayed on screen.

---

<div class="post-metadata">

**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:** [January 29, 2024, 4:11pm UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894/4 "2024-01-29T16:11:11Z")

</div>

If the completion code is shown on the screen it’s easy for someone to cheat .  
I recommend adding the completion code to the URL.

---

<div class="post-metadata">

**Author:** ![es265](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/es265/32/39014_2.png) [@es265](https://discourse.psychopy.org/u/es265)\
**Post date:** [January 30, 2024, 10:14am UTC](https://discourse.psychopy.org/t/experiment-data-not-saved/37894/5 "2024-01-30T10:14:46Z")

</div>

My bad, they are automatically navigated back to Prolific via URL. No display of completion code.