Table 6.
Open in new tab

Mean Number of Days to Complete by Sample by Sequencing and Time of Text

Cooperative Respondents
Other Respondents
Early text reminderLate text reminderText inviteEarly text reminderLate text reminder
Sequencing
 Web completes
  No. of days to complete11.5*11.7*18.213.4*21.0
  Sample size7197101,9981,8691,850
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 5713) = 88.16 (<.0001)
 Paper completes
  No. of days to complete63.4*63.5*63.8*53.353.3
  Sample size5838135158175
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 465) = 116.99 (<.0001)
MorningAfternoonMorning
Afternoon
Time of text message
 Web completes
  No. of days to complete11.411.818.2*16.9*
  Sample size6857442,8922,824
  t-test (p-value)t(1426.7) = -0.17 (.863)t(5684.4) = 2.63 (.009)
 Paper completes
  No. of days to complete63.463.556.656.1
  Sample size4749228240
  t-test (p-value)t(1426.8) = –0.46 (.645)t(460.0) = 0.65 (.519)
Cooperative Respondents
Other Respondents
Early text reminderLate text reminderText inviteEarly text reminderLate text reminder
Sequencing
 Web completes
  No. of days to complete11.5*11.7*18.213.4*21.0
  Sample size7197101,9981,8691,850
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 5713) = 88.16 (<.0001)
 Paper completes
  No. of days to complete63.4*63.5*63.8*53.353.3
  Sample size5838135158175
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 465) = 116.99 (<.0001)
MorningAfternoonMorning
Afternoon
Time of text message
 Web completes
  No. of days to complete11.411.818.2*16.9*
  Sample size6857442,8922,824
  t-test (p-value)t(1426.7) = -0.17 (.863)t(5684.4) = 2.63 (.009)
 Paper completes
  No. of days to complete63.463.556.656.1
  Sample size4749228240
  t-test (p-value)t(1426.8) = –0.46 (.645)t(460.0) = 0.65 (.519)

Note.—*Significant result at p <.05.

Table 6.
Open in new tab

Mean Number of Days to Complete by Sample by Sequencing and Time of Text

Cooperative Respondents
Other Respondents
Early text reminderLate text reminderText inviteEarly text reminderLate text reminder
Sequencing
 Web completes
  No. of days to complete11.5*11.7*18.213.4*21.0
  Sample size7197101,9981,8691,850
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 5713) = 88.16 (<.0001)
 Paper completes
  No. of days to complete63.4*63.5*63.8*53.353.3
  Sample size5838135158175
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 465) = 116.99 (<.0001)
MorningAfternoonMorning
Afternoon
Time of text message
 Web completes
  No. of days to complete11.411.818.2*16.9*
  Sample size6857442,8922,824
  t-test (p-value)t(1426.7) = -0.17 (.863)t(5684.4) = 2.63 (.009)
 Paper completes
  No. of days to complete63.463.556.656.1
  Sample size4749228240
  t-test (p-value)t(1426.8) = –0.46 (.645)t(460.0) = 0.65 (.519)
Cooperative Respondents
Other Respondents
Early text reminderLate text reminderText inviteEarly text reminderLate text reminder
Sequencing
 Web completes
  No. of days to complete11.5*11.7*18.213.4*21.0
  Sample size7197101,9981,8691,850
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 5713) = 88.16 (<.0001)
 Paper completes
  No. of days to complete63.4*63.5*63.8*53.353.3
  Sample size5838135158175
  t-test/F-test (p-value)t(5684.4) = 2.63 (.009)F(2, 465) = 116.99 (<.0001)
MorningAfternoonMorning
Afternoon
Time of text message
 Web completes
  No. of days to complete11.411.818.2*16.9*
  Sample size6857442,8922,824
  t-test (p-value)t(1426.7) = -0.17 (.863)t(5684.4) = 2.63 (.009)
 Paper completes
  No. of days to complete63.463.556.656.1
  Sample size4749228240
  t-test (p-value)t(1426.8) = –0.46 (.645)t(460.0) = 0.65 (.519)

Note.—*Significant result at p <.05.

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