# MOCK sample and PCR blanks

**URL:** https://forum.qiime2.org/t/mock-sample-and-pcr-blanks/1113
**Category:** User Support
**Tags:** filtering
**Created:** [August 29, 2017, 11:08pm UTC](https://forum.qiime2.org/t/mock-sample-and-pcr-blanks/1113 "2017-08-29T23:08:13Z")
**Posts on this page:** 1
**Showing post:** 14

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### Author: ![Nicholas\_Bokulich](https://forum.qiime2.org/user_avatar/forum.qiime2.org/nicholas_bokulich/32/19937_2.png) [@Nicholas\_Bokulich](https://forum.qiime2.org/u/Nicholas_Bokulich)
#### Post date: [December 1, 2017, 7:10pm UTC](https://forum.qiime2.org/t/mock-sample-and-pcr-blanks/1113/14 "2017-12-01T19:10:13Z")

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@fstudart,  
Just to follow up, methods to assess accuracy using mock communities are now available as new actions[`evaluate-composition`](https://docs.qiime2.org/2017.11/tutorials/quality-control/#evaluating-quality-of-samples-with-known-composition) and [`evaluate-seqs`](https://docs.qiime2.org/2017.11/tutorials/quality-control/#evaluating-sequence-quality) as of the 2017.11 release. These are designed with mock communities in mind, but could also be useful for testing simulated communities or other samples types with an “expected” composition/sequences.

I hope these help! 🎆🎉🌝

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