Response rates

Face-to-face response rate
2012: 52.1% (AAPOR RR2)
2014: 47.5% (AAPOR RR1)

Cumulative response rate at panel registration
2012: 18.5%
2014: 21.0%

2018: 24.1%
Overall: 21.5%

Note: conservative estimates based on all original panel members; wave-on-wave ineligibles (e.g. deceased/moved abroad) not excluded from gross sample


n2012 sample
n2014 sample
n2018 sample
Completion rate
Cumulative response rate
Wave 1 (September 2012)  1483

92.5% 17.1% 
Wave 2 (November 2012) 1171

73.1%13.5%
Wave 3 (January 2013) 1238

77.2% 14.3%
Wave 4 (March 2013) 1118

69.7% 12.9%
Wave 5 (May 2013) 1141

71.2% 13.1%
Wave 6 (July 2013) 1117

69.7% 12.9%
Wave 7 (September 2013) 1100

68.6% 12.7%
Wave 8 (November 2013) 1073

66.9% 12.4%
Wave 9 (January 2014) 1064

66.4% 12.3%
Wave 10 (March 2014)992

61.9%
11.4%
Wave 11 (May 2014) 964

60.1% 11.1%
Wave 12 (July 2014) 936

58.4% 10.8%
Wave 13 (September 2014) 965 3209
86.5% 17.8%
Wave 14 (November 2014) 
948 2627
72.4% 14.8%
Wave 15 (January 2015) 913 2651
72.6% 14.9%
Wave 16 (March 2015) 878 2548
69.8% 14.3%
Wave 17 (May 2015) 883 2460
67.8% 13.9%
Wave 18 (July 2015) 844 2343
64.6% 13.2%
Wave 19 (September 2015) 850 2367
65.2% 13.4%
Wave 20 (November 2015) 859 2300
63.8% 13.0%
Wave 21 (January 2016) 860 2338
64.7% 13.2%
Wave 22 (March 2016) 878 2265
63.3% 12.9%
Wave 23 (May 2016) 793 2148
59.5% 12.2%
Wave 24 (July 2016) 810 2076
58.1% 11.9%
Wave 25 (September 2016) 821 2083
58.4% 11.9%
Wave 26 (November 2016) 823 2085
58.5% 11.9%
Wave 27 (January 2017)
799
2068

57.8%
11.8%
Wave 28 (March 2017)
802
2011

56.5%
11.5%
Wave 29 (May 2017)786
1957

55.1%
11.2%
Wave 30 (July 2017)765
1871

52.9%
10.8%
Wave 31 (September 2017)782
1893

53.6%
10.9%
Wave 32 (November 2017)748
1900

53.3%
10.9%
Wave 33 (January 2018)778
1906

53.9%
11.0%
Wave 34 (March 2018)747
1853

52.2%
10.6%
Wave 35 (May 2018)744
1805

51.1%
10.4%
Wave 36 (July 2018)722
1742

49.4%
10.1%
Wave 37 (September 2018)720
1701
2990
75.5%
17.4%
Wave 38 (November 2018)719
1696
1879
54.0%
12.0%

An overview of the recruitment into the GIP 2012 and 2014 can be found here.