| Twenty-one interviewers and four supervisors carried out the field interviews. |
| In targeted sampling, interviewers fan out into targeted areas to conduct interviews over the course of several days. |
| All interviewers held bachelor's degrees and most were in postgraduate study in the social sciences. |
| Consequently, these characteristics may serve as cues that are used by respondents to guide their interactions with survey interviewers. |
| After piloting, 400 houses from each area were visited by trained interviewers using a multistage sampling procedure. |
| During early summer of 1999, interviewers recruited farmworkers at 36 housing sites. |
