Table 4 Response rates and analysis cases by calendar week
From: Development of a new COVID-19 panel survey: the IAB high-frequency online personal panel (HOPP)
Wave | Month | Calendar week | New recruits | Wave 1 Panellists | Refreshment Panellists | Number of analysis cases | ||||
|---|---|---|---|---|---|---|---|---|---|---|
Ninvited | RR | Ninvited | RR | Ninvited | RR | Overall | With record linkage consent | |||
1 | May | 19 | 200,000 | 3.9 | – | – | – | – | 7.702 | 6.484 |
2 | June | 23 | – | – | 2435 | 39.7 | – | – | 966 | 872 |
24 | – | – | 2436 | 36.5 | – | – | 888 | 811 | ||
25 | – | – | 2444 | 33.8 | – | – | 826 | 744 | ||
26 | – | – | 2441 | 32.5 | – | – | 794 | 726 | ||
3 | July | 27 | – | – | 2435 | 31.2 | – | – | 760 | 698 |
28 | – | – | 2436 | 31.0 | – | – | 754 | 684 | ||
29 | – | – | 2444 | 27.5 | – | – | 671 | 602 | ||
30 | – | – | 2441 | 29.1 | – | – | 710 | 647 | ||
4 | August | 31 | – | – | 2435 | 23.4 | – | – | 570 | 517 |
32 | – | – | 2436 | 22.3 | – | – | 543 | 490 | ||
33 | – | – | 2444 | 21.7 | – | – | 530 | 480 | ||
34 | – | – | 2441 | 20.8 | – | – | 507 | 466 | ||
5 | September | 36 | 24,797 | 4.6 | 938 | 46.5 | – | – | 1575 | 1355 |
38 | 24,797 | 4.4 | 928 | 35.2 | – | – | 1409 | 1232 | ||
October | 40 | 24,797 | 4.5 | 926 | 52.6 | – | – | 1615 | 1405 | |
42 | 24,797 | 4.8 | 966 | 56.6 | – | – | 1728 | 1504 | ||
6 | Novembera | 45 | – | – | 935 | 62.2 | 1171 | 48.1 | 1145 | 1064 |
47 | – | – | 925 | 62.3 | 1224 | 48.5 | 1170 | 1093 | ||
December | 49 | – | – | 921 | 59.6 | 1308 | 49.1 | 1191 | 1085 | |
51 | – | – | 963 | 67.6 | 1235 | 54.9 | 1329 | 1216 | ||
7 | January | 2 | – | – | 933 | 64.1 | 1170 | 50.1 | 1184 | 1092 |
4 | – | – | 919 | 67.2 | 1218 | 47.7 | 1199 | 1133 | ||
February | 6 | – | – | 919 | 61.0 | 1311 | 47.7 | 1187 | 1083 | |
8 | – | – | 960 | 62.7 | 1235 | 46.3 | 1174 | 1078 | ||