Skip to main content

Table 6 Survey sampling cost effectiveness

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

Sampling protocol Surveys sent to receive 1 response (n)a Surveys sent to recruit 1 participant (n)a,d Costs ($)
Follow-up waves (n) Survey length Survey incentive Initial wave Follow-up wave 1 Follow-up wave 2 Follow-up wave 3 Total per mailed individual Per response receiveda Total to receive 1 responseb Recruit 1 participantb,d
3 Short $2 4.61 50.7 3.01 0.70 1.01 1.01 5.74 26.44 28.89 317.51
3 Medium $2 4.88 53.6 3.09 0.70 1.09 1.09 5.96 29.09 31.84 349.88
0 Long $2 12.20 134.1 3.09 3.09 37.65 39.54 434.48
3 Long $2 6.13 67.4 3.09 0.70 1.09 1.09 5.96 36.59 39.99 439.50
2 Long $2 8.33 91.5 3.09 0.70 1.09 4.88 40.64 44.01 483.66
0 Long Gift card 32.26 354.5 1.09 1.09 40.83c 46.81c 503.38
  1. Data ordered from most to least cost effective method to receive a single completed survey
  2. aAssumes 100% delivery rate
  3. bAssumes 87.6% delivery rate and, if applicable, $0.248 recouped from non-deliverable initial survey waves
  4. cIncludes a mean gift card cost of $5.67
  5. dAssumes 9.1% participation rate from completed surveys across all survey mailing rounds, independent of mailing protocol. Does not include cost for actual participation in the field study ($150 or $200)