How to estimate a reliability of a scale with items rated on dichotomous values (i.e, Yes, No)?

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Alaa Albashayreh

For binary data you may try Kuder-Richardson Formula 20. See links below.

http://www.statisticshowto.com/kuder-richardson/

https://www.youtube.com/watch?v=CRIK_tfUzl0

https://www.statmodel.com/download/RDASEM.pdf

https://www.researchgate.net/post/How_do_I_compute_the_internal_consistency_of_a_scale_which_is_made_up_of_binary_coded_yes1_no0_answers

Ahmad Rayan

Thanks so much dear Alaa. Hoping you always the best.

Sail Hadda Ouahida

Merci pour tous ces articles, c'est vraiment important