PDMRG uses the following estimation methodologies for calculating the Eligibility and Response Rate for our Research Projects:
++ Unknown (U)
+ Busy, no answer, answering machine
+ Language problem
+ Illness, Incapable
+ Selected respondent not available
+ Household refusal
+ Respondent refusal
++ Ineligible (I)
+ Language disqualify
+ No one 18+
+ Other disqualify
++ Eligible (E)
+ Language problem
+ Illness, incapable
+ Selected respondent not available
+ Household refusal
+ Respondent refusal
+ Qualified respondent break-off
++ Completed interviews (C)
Eligibility Rate (ER) = (C+E)/(C+E+I)
Response Rate (RR) = C/[(ER*U) + C + E]
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