A sample of 50 subjects was assembled, the profile of
which is depicted in Table 1. Its size and characteristics
are in accordance with methodological guidelines (Reynolds
& Gutman, 2001), and are similar to those of samples
used in comparable studies (Boer & McCarthy, 2003; Fotopoulos
et al., 2003; Oude Ophuis et al., 1994). A trained
interviewer1 conducted the fifty laddering interviews at the subjects home during the second semester of 2001. All
interviews were conducted in Dutch and tape-recorded
with the interviewees permission.