Materials and Methods
Participants
Five hundred seventy questionnaires were distributed
to participants recruited from several university campuses. Of
these, 488 were returned, giving a response rate of 82.61%.
There were 444 usable questionnaires (324 males, 124 females).
Ages ranged from 18 to 39 years (M ¼ 20.77; SD ¼ 1.66). All of
the participants own and use a mobile phone regularly.