# Questions about kuiper test

**URL:** <https://community.openastronomy.org/t/questions-about-kuiper-test/194>\
**Category:** Astropy\
**Created:** [October 9, 2021, 1:19am UTC](https://community.openastronomy.org/t/questions-about-kuiper-test/194 "2021-10-09T01:19:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![A-ep93](https://dub1.discourse-cdn.com/flex005/user_avatar/community.openastronomy.org/a-ep93/32/83_2.png) [@A-ep93](https://community.openastronomy.org/u/A-ep93)\
**Post date:** [October 9, 2021, 1:19am UTC](https://community.openastronomy.org/t/questions-about-kuiper-test/194/1 "2021-10-09T01:19:25Z")

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Hello all,  
I have two questions about kuiper test implementation in astropy:

1. Is the false positive probability (FPP) the same as the p-value? If they are not same, then how should I interpret the values of FPP to see whether null hypothesis is rejected for a specific significance level?
2. Does this implementation of kuiper test have any limits in the size of data? I mean can it be use for data sizes in order of hundreds or a few thousands?