Group Internet access Asked for e-mail address Invited R (n) Response
Only online

Mixed-mode (online+paper)
n % n %
A Yes Not asked 250 48 19.2 137 54.8
B Yes Asked and gave e-mail address 250 68 27.2 140 56.0
C Yes asked and did Not give e-mail address 250 55 22.0 143 57.2
D No Not asked 250 8 3.2 148 59.2
Unweighted total 1,000 179 17.9 568 56.8
Weighted rates 17.0 56.2