# What does SDO stand for?

**URL:** <https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342>\
**Category:** Potential Outcomes Causal Model\
**Created:** [July 17, 2022, 12:34am UTC](https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342 "2022-07-17T00:34:09Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![RavinKumar](https://yyz1.discourse-cdn.com/flex007/user_avatar/community.intuitivebayes.com/ravinkumar/32/13_2.png) [@RavinKumar](https://community.intuitivebayes.com/u/RavinKumar)\
**Post date:** [July 17, 2022, 12:34am UTC](https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342/1 "2022-07-17T00:34:09Z")

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Anyone know what SDO stands for/ITs defined mathematically but wondering what it is in English words. If its mentioned in the chapter I for some reason cannot find it!

[https://mixtape.scunning.com/04-potential\_outcomes#statistical-inference](https://mixtape.scunning.com/04-potential_outcomes#statistical-inference)

 ![image](https://canada1.discourse-cdn.com/flex007/uploads/intuitivebayes/original/1X/02c4b9011132c27cf089147c81b0f771e8aa6310.png)

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**Author:** ![bkktimner](https://avatars.discourse-cdn.com/v4/letter/b/779978/32.png) [@bkktimner](https://community.intuitivebayes.com/u/bkktimner)\
**Post date:** [July 17, 2022, 1:00am UTC](https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342/2 "2022-07-17T01:00:53Z")

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Does it refer to _Simple Different in Mean Outcomes_ as in [here](https://www.causalflows.com/estimating-average-treatment-effects/#:~:text=Particuarly%2C%20if%20untreated%20individuals%20have,of%20a%20given%20sample%20population.)?  
Mixedtape also mentions [Simple Different in Means](https://mixtape.scunning.com/04-potential_outcomes#simple-difference-in-means-decomposition) too. But I wonder why it was not referenced before.

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**Author:** ![RavinKumar](https://yyz1.discourse-cdn.com/flex007/user_avatar/community.intuitivebayes.com/ravinkumar/32/13_2.png) [@RavinKumar](https://community.intuitivebayes.com/u/RavinKumar)\
**Post date:** [July 17, 2022, 1:08am UTC](https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342/3 "2022-07-17T01:08:25Z")

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That would make a lot of sense… Thank you very much

I realized this book seems to just drop words and terms out of nowhere sometimes, which is a bit frustrating. I wish there was a symbol list and glossary.

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**Author:** ![bkktimner](https://avatars.discourse-cdn.com/v4/letter/b/779978/32.png) [@bkktimner](https://community.intuitivebayes.com/u/bkktimner)\
**Post date:** [July 18, 2022, 3:26am UTC](https://community.intuitivebayes.com/t/what-does-sdo-stand-for/342/4 "2022-07-18T03:26:20Z")

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Agree. I also feel the same. It’s quite hard especially when you read it on your own. then the book club comes to the rescue! 🤩