Does JAMOVI use the KR-20 formula for alpha?
Posted: Tue Jul 31, 2018 2:02 am
Hi
When Jamovi is calculating Cronbach's alpha for internal consistency (reliability) - does it switch to using the KR-20 formula (Kuder-Richardson 20) when it detects that the measures are dichotomous? My understanding is that SPSS does this (because Cronbach's alpha isn't appropriate for dichotomous variables) - and just wondering if JAMOVI did the same?
Couldn't find an answer to this elsewhere.
Thanks!
Mark
When Jamovi is calculating Cronbach's alpha for internal consistency (reliability) - does it switch to using the KR-20 formula (Kuder-Richardson 20) when it detects that the measures are dichotomous? My understanding is that SPSS does this (because Cronbach's alpha isn't appropriate for dichotomous variables) - and just wondering if JAMOVI did the same?
Couldn't find an answer to this elsewhere.
Thanks!
Mark