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Juan's avatar

I believe SDO is incorrectly calculated as reader number 7 has 0 for both outcomes, observed and counter factual, with and indicator in 1, so you should add 3 ones and 1 zero and not 4 ones in the selection bias example, am I right? I believe that it would be corrected if you interchange indicators between records 6 and 7.

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Ken Acquah's avatar

Yep, good catch. Thanks again!

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Juan's avatar

There are expectation operators missing in the selection bias equation

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Ken Acquah's avatar

Thanks for the tip! My bad for missing this!

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