Plausible values: what do i do?

[Matej Sedlacek]

Hi,
i have found nearly nothing on this. It is used mostly on PISA, TIMMS and PIRLS testing.
I kind of understand, the meaning behind it and what they represent... But I have no idea, how to work with them.

E.g. I have students from a country perform math test. Then for each student the plausible values (pv) are generated to represent their *competency*.
So now each student instead of the score has 10pvs representing his/her competency in math. How can I calculate the overal students' competency for that nation???

I am so desperate! The only thing I know is that there is no meaning in just creating the mean from all 10 pvs for each student (i dont know why)...

Anyone has any experience? Thank you SO much!

[Marcos Almeida]

Welcome to the Stata Forum \ Statalist.

Please read the FAQ, particularly the excerpt about sharing data/command/output. Also, there are great tips about creating a very informative post.

[Phil Bromiley]

I'm afraid this may not be the right forum to help you. Even the acronyms you use are foreign to most of us. Your question is really about the details of your measure, on which we know only what you tell us.

Why exactly is the mean or median not a good indicator? If the standardization used to create plausible values varies by country (and you don't know it), then it may be impossible to generate comparable figures.

[Karel Novak]

Plausible values are in fact imputations. Start from here.

Also: https://www.statalist.org/forums/for...ausible-values