8
Pre-Survey Letter
Pre-survey letters were sent in staggered batches to potential households in each area
(to avoid any seasonal bias of sampling one location after another).
Electoral Roll
The Electoral Roll was requested by the Ministry of Social Development on behalf
of the Quality of Life project team. Once obtained, names from the twelve
territorial authorities and outside of these areas were randomly selected to be tele-
matched (so that both addresses and telephone numbers were known).
Interviewer Briefing
A face to face briefing was undertaken by TNS (with representatives from the City
Councils and the Ministry of Social Development present). Interviewers and supervisors
were fully briefed on the project and questionnaire.
Interview completed
Refusal
CATI (Computer Assisted Telephone Interviewing)
Interviewers called households who had received a letter, making up to seven call backs per
household. A random resident within the household (i.e. next birthday) was asked to participate in
the survey. Quotas were applied throughout the interviewing process to ensure that sufficient
sample for gender, age, ethnicity and location was achieved. As the interviewing progressed,
mesh blocks defined by Statistics New Zealand were used to identify high incident ethnic areas so
as to ensure ethnicity quota targets were met where possible.