# Mouse Component: Need help with RTs

**URL:** <https://discourse.psychopy.org/t/mouse-component-need-help-with-rts/36706>\
**Category:** Builder\
**Tags:** mouse\
**Created:** [October 4, 2023, 8:23pm UTC](https://discourse.psychopy.org/t/mouse-component-need-help-with-rts/36706 "2023-10-04T20:23:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![hulyaaldemir](https://avatars.discourse-cdn.com/v4/letter/h/e9a140/32.png) [@hulyaaldemir](https://discourse.psychopy.org/u/hulyaaldemir)\
**Post date:** [October 4, 2023, 8:23pm UTC](https://discourse.psychopy.org/t/mouse-component-need-help-with-rts/36706/1 "2023-10-04T20:23:48Z")

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**OS** (e.g. Win10):  
\*\*PsychoPy Builder version: v2023.1.3

\*\*What are you trying to achieve?: I am relatively new to PsychoPy and using builder for a task where my participants need to click on three words, one of them being the correct answer. I need to save the RTs of these clicks.

**What did you try to make it work?:** In a routine, I have 8 trials (meaning 8 rows in my condition file). The mouse component is set like this:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/psychopy/original/3X/c/e/cef35e7f53083eb8f8c6d824c93ca115182c39e8.png)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/psychopy/original/3X/0/0/000c565ef0f0ecd3d045245f089a21354603ce07.png)

I do not get an error, and I see in my .xlsx file that there is a mouse.time\_raw column. I have read all the documentation about the mouse component and checked the forum about posts on reaction time, but still unresolved in my mind:

- Does these settings save response time relative to each frame, when “mouse onset” is chosen? All my routines are set to “set every frame”, because I need the trials to change.

- I do not particularly understand what I need to choose for “Start” and “Stop”. Is it correct to use frame N?

- And my biggest question is: with these settings, is what recorded as a RT is this: from the mouse onset at the BEGINNING OF THE FRAME until the CLICK ON THAT FRAME? because I basically need it for every trial (row), which seems correct to me, but I have my doubts that I am understanding correctly (I cannot put image of my datafile because of being a new member, but I see a mouse.time\_raw column for each of my rows, which is fine). Because in a Stroop tutorial, I had seen response.mean and response.std as well, but I did not see a code component being used. How do I get there, should I get there?

What I basically need is to see the RT in every frame (every trial? every row? basically my text shows up, mouse time starts, and then participant clicks on a word and I need this time in between.) Any help is appreciated because I am afraid to save these RTs wrong and later on calculate them wrong. I really tried my best to check everything on the forum,

Best, H