| Combined methods | RDD method only | Opt-in method only |
---|---|---|---|
Calls | |||
 Total calls placed | 310,151 | 142,946 | 167,205 |
 Total unique numbers called | 246,233 (79.4%) | 138,728 (97.0%) | 107,505 (64.3%) |
Call disposition | |||
 (NC) Non-contacts | 82,485 (33.5%) | 55,673 (40.1%) | 26,812 (24.9%) |
 (R) Refusals & break-offs | 127,375 (51.7%) | 74,741 (53.9%) | 52,634 (49.0%) |
 (P) Partial interviews | 3,192 (1.3%) | 1,551 (1.1%) | 1,641 (1.5%) |
 (I) Completed interviews | 3,020 (1.2%) | 1,462 (1.1%) | 1,558 (1.4%) |
 (O) Other | 5,448 (2.2%) | 2,053 (1.5%) | 3,395 (3.2%) |
 Ineligible respondents†| 27,733 (11.3%) | 4,710 (3.4%) | 23,023 (21.4%) |
AAPOR designations | |||
 Contact rate 3 (CON3): (I+P)+R+O/(I+P)+R+NC+O | 62.2% | 58.5% | 68.3% |
 Response rate 5 (RR5): I/((I+P)+(R+NC+O)) | 1.4% | 1.1% | 1.8% |
 Response rate 6 (RR6): (I+P)/((I+P)+(R+NC+O)) | 1.5% | 1.2% | 1.9% |
 Cooperation rate 1 (COOP1): I/(I+P) + R+O) | 2.2% | 1.9% | 2.7% |
 Cooperation rate 2 (COOP2): (I+P)/((I+P)+R+O)) | 2.3% | 2.0% | 2.8% |
 Refusal rate 3 (R3): R/((I+P)+(R+NC+O)) | 58.3% | 55.8% | 62.3% |
Survey Details | |||
 Average survey length (I + P) | 9 min 51 s | 9 min 49 s | 9 min 52 s |