Complete report

The Troldahl-Carter-Bryant (T-C-B) respondent selection method was used to select eligible respondents for the general public survey. The T-C-B method requires interviewers to ask two questions shortly after the introductory statements, "How many adults aged 18 or over live in your household, including yourself?" and "How many of them are women / men?" Based on answers to the two questions, interviewers will select a designed respondent using one of eight different versions of a selection matrix that appears on the computer screen at random. In so doing, a proper balance of males and females, younger and older adults in a household can be reached. The likelihood of within-sampling-unit non-coverage error is minimized because all eligible respondents in a household are equally considered by the selection method.

In conducting both surveys, at least fifteen attempts were made to complete an interview at every sampled telephone number. The calls were scheduled over days of the week to maximize the chances of making a contact with a potential respondent. All refusals were recontacted at least once in order to attempt to convert them to completed interviews.