Definitions:

• Completes: Completed interviews
• Terminates: Respondents who end the interview after having been successfully qualified.
• Not Qualified: Respondents who are ineligible to participate in the study based on screening criteria.
• Over Quota: Respondents who would have been considered eligible if it were not for their quota group being full.

The Formula

(Completes + Terminates) / (Completes + Terminates + Not Qualified + Over Quota)