Nintext Yes/No check box

Hi my name is beni,

I am newbie in Nintex but I would like to learn from all of you in this forum.

 My question is :

1. how to read Nintex Yes/No check box value without using javascript ?

2. how to change the Yes/No check box value without using javascript ?

If there is impossible without using javascript then how to answer the question above using javascript ?

 Thank you for the advice.

Best regards,

Benni Bangun