It estimates association between a binary outcome between groups at group level A. risk difference B. risk ratio C. odds ratio A type of sampling that involves referral/recruitment of another sample...

It estimates association between a binary outcome between groups at group level

A. risk difference

B. risk ratio

C. odds ratio

A type of sampling that involves referral/recruitment of another sample from the sampled respondent.

a. random sampling

b. convenience sampling

c. respondent driven sampling