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Table 1 Overview of each survey round

From: Effectiveness of incentives and follow-up on increasing survey response rates and participation in field studies

Round

Incentive for completing the survey

Survey length

Number of follow-up waves

Incentive for participating in field study

Addressee

% deliverable

1

Gift card

Long

0

$100

“Current Resident”

91.3

2

Gift card

Long

0

$100

“Current Resident”

92.9

3

Gift card

Long

0

$100

Personalized

91.7

4

Gift card

Long

0

$100

Personalized

88.8

5

Gift card

Long

0a

$100

Personalized

91.3

6

$2 cash

Long

3

$150

Personalized

88.3

7

$2 cash

Long

3

$150

Personalized

89.6

8

$2 cash

Medium

3

$150

Personalized

87.5

9

$2 cash

Short

3

$150

Personalized

86.3

10

$2 cash

Long

3

$200

Personalized

84.6

11

$2 cash

Long

0

$200

Personalized

91.3

12

$2 cash

Long

3

$200

Personalized

85.0

13

$2 cash

Long

3

$200

Personalized

86.3

14

$2 cash

Long

2

$200

Personalized

85.4

15

$2 cash

Long

2

$200

Personalized

84.2

16

$2 cash

Long

2

$200

Personalized

83.8

17

$2 cash

Long

2

$200

Personalized

82.1

  1. aIncluded pre-survey notification postcard sent before the initial survey mailing