- Thread starter hirastikanah
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well, Cronbach's alpha was originally developed as the continuous extension of the Kuder-Richardson20 formula so i say you're safe

Have a look at this:

Raykov, T. (1997). Scale reliability, Cronbach's coefficient alpha, and violations of essential tau-equivalence with fixed congeneric components. Multivariate Behavioral Research, 32(4), 329-353.

well, Cronbach's alpha was originally developed as the continuous extension of the Kuder-Richardson20 formula so i say you're safe

emmmm

i am not sure what you mean !

safe?

emmmm

i am not sure what you mean !

emmmm

i am not sure what you mean !

it means that (assuming the assumption of tau-equivalence is satisfied) there is no problem with using Cronbach's alpha on binary data. it just has a different name: the Kuder-Richardson 20 formula. but it's the same thing.

got it

thank you :tup: